**Learning Goal: **I’m working on a c++ test / quiz prep and need an explanation and answer to help me learn.

1. A government research lab has concluded that an artificial sweetener commonly used in diet soda pop will cause death in laboratory mice. A friend of yours is desperate to lose weight but cannot give up soda pop.Your friend wants to know how much diet soda pop it is possible to drink without dying as a result. Write a program to supply the answer. The input to the program is the amount of artificial sweetener needed to kill a mouse (use 5 grams), the mass of the mouse (use 35 grams), and the weight of the dieter (use 45400 grams for a 100 pound person). Assume that the lethal dose for a mouse is proportional to the lethal dose for the human. A single can of soda pop has a mass of 350 grams. To ensure the safety of your friend, be sure the program requests the weight at which the dieter will stop dieting, rather than the dieter’s current weight. Assume that diet soda contains 1/10th of 1% artificial sweetener. Use a variable declaration with the modifier const to give a name to this fraction. You may want to express the percent as the double value 0.001. Your program should allow the calculation to be repeated as often as the user wishes.

**Please create the above C++ program by using this topic only Variables and Assignments, Input and output, Data Types and Expressions, simple Flow of control and Program style.**

2. Workers at a particular company have won a 7.6% pay increase retroactive for 6 months. Write a program that takes an employee’s previous annual salary as input, and outputs the amount of retroactive pay due the employee, the new annual salary, and the new monthly salary. Use a variable declaration with the modifier const to express the pay increase. Your program should allow the calculation to be repeated as often as the user wishes.

**Please create the above C++ program by using this topic only Variables and Assignments, Input and output, Data Types and Expressions, simple Flow of control and Program style.**

3. Negotiating a consumer loan is not always straightforward. One form of loan is the discount installment loan, which works as follows. Suppose a loan has a face value of $1,000, the interest rate is 15%, and the duration is 18 months. The interest is computed by multiplying the face value of $1,000 by 0.15, to yield $150. That figure is then multiplied by the loan period of 1.5 years to yield $225 as the total interest owed. That amount is immediately deducted from the face value, leaving the consumer with only $775. Repayment is made in equal monthly installments based on the face value. So the monthly loan payment will be $1,000 divided by 18, which is $55.56. This method of calculation may not be too bad if the consumer needs $775 dollars, but the calculation is a bit more complicated if the consumer needs $1,000. Write a program that will take three inputs: the amount the consumer needs to receive, the interest rate, and the duration of the loan in months. The program should then calculate the face value required in order for the consumer to receive the amount needed. It should also calculate the monthly payment. Your program should allow the calculations to be repeated as often as the user wishes.

**Please create a C++ program by using this topics only Variables and Assignments, Input and output, Data Types and Expressions, simple Flow of control and Program style.**

4. Write a program that calculates the total grade for N classroom exercises as a percentage. The user should input the value for N followed by each of the N scores and totals. Calculate the overall percentage (sum of the total points earned divided by the total points possible) and output it as a percentage.

Sample input and output is shown below.

How many exercises to input? 3

Score received for exercise 1: 10

Total points possible for exercise 1: 10

Score received for exercise 2: 7

Total points possible for exercise 2: 12

Score received for exercise 3: 5

Total points possible for exercise 3: 8

Your total is 22 out of 30, or 73.33%.

**Please create the above C++ program by using this topics only Variables and Assignments, Input and output, Data Types and Expressions, simple Flow of control and Program style.**

5. Write a program to score the paper-rock-scissor game. Each of two users types in either P, R, or S. The program then announces the winner as well as the basis for determining the winner: Paper covers rock, Rock breaks scissors, Scissors cut paper, or Nobody wins. Be sure to allow the users to use lowercase as well as uppercase letters. Your program should include a loop that lets the user play again until the user says she or he is done.

**Please create the above C++ Program by Using Boolean Expressions, Multiway Branches, more about C++ Loop Statements and Designing loops.**

6. Interest on a loan is paid on a declining balance, and hence a loan with an interest rate of, say, 14 percent can cost significantly less than 14 percent of the balance. Write a program that takes a loan amount and interest rate as input and then outputs the monthly payments and balance of the loan until the loan is paid off. Assume that the monthly payments are one twentieth of the original loan amount, and that any amount in excess of the interest is credited toward decreasing the balance due. Thus, on a loan of $20,000, the payments would be $1,000 a month. If the interest rate is 10 percent, then each month the interest is one-twelfth of 10 percent of the remaining balance. The first month, (10 percent of $20,000)/12, or $166.67, would be paid in interest, and the remaining $833.33 would decrease the balance to $19,166.67. The following month the interest would be (10 percent of $19,166.67)/12, and so forth. Also have the program output the total interest paid over the life of the loan. Finally, determine what simple annualized percentage of the original loan balance was paid in interest. For example, if $1,000 was paid in interest on a $10,000 loan and it took 2 years to pay off, then the annualized interest is $500, which is 5 percent of the $10,000 loan amount. Your program should allow the user to repeat this calculation as often as desired.

**Please create the above C++ Program by Using Boolean Expressions, Multiway Branches, more about C++ Loop Statements and Designing loops.**

7.Write a program that asks for the user’s height, weight, and age, and then computes clothing sizes according to the formulas:

- Hat size = weight in pounds divided by height in inches and all that multiplied by 2.9.
- Jacket size (chest in inches) = height times weight divided by 288 and then adjusted by adding 1/8 of an inch for each 10 years over age 30. (Note that the adjustment only takes place after a full 10 years. So, there is no adjustment for ages 30 through 39, but 1/8 of an inch is added for age 40.)
- Waist in inches = weight divided by 5.7 and then adjusted by adding 1/10 of an inch for each 2 years over age 28. (Note that the adjustment only takes place after a full 2 years. So, there is no adjustment for age 29, but 1/10 of an inch is added for age 30.)

Use functions for each calculation. Your program should allow the user to repeat this calculation as often as the user wishes.

**Please create the C++ program by Using Predefined Functions, Programmer Defined Function, Procedural Abstraction, Scope and Local Variables, Overloading Function Names.**

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