PLEASE CODE IN C$++$ THANK YOU :) $9\mathrm{.}1$

Write a program that displays the retail price of an item. The program asks the user for the item's wholesale price and the number of days it takes to sell the item. The program then calculates the

item's retail price based on the following criteria:

If the number of days it takes to sell the item is more than $7$ days, the markup percentage is $100$ percent. Ex$.$: the retail price of $$5\mathrm{.}00$ item that sales in $9$ days is $$10\mathrm{.}00.$

If the number of days it takes to sell the item is $7$ days or less, the markup percentage is $70$ percent.

Use functions to do the following:

display description to user

calculate retail price

display output

Use named constants for the threshold $(7)$ and the percentage increases $(70$ and $100).$

Include a loop that lets the user repeat the program until the user says she or he is done.

$9\mathrm{.}2$

Write a program that converts feet and inches to centimeters.

The program asks the user to value in feet and inches and it converts them into centimeters.

Use the following functions:

display description to user

one or more for calculation

output

Use a constant for conversion factors.

Include a loop that lets the user repeat the program until the user says she or he is done.

$1$ inch $=2\mathrm{.}54$ centimeters

$1$ foot $=12$ inches

Before submitting, check for following:

$-5$ lines of comments

$-$Code lineup

$-$Indentation

$-$meaningful names for variables

$-$named constants for values that do not change

$-$display amounts in currency format

$-$description to user

$-$add comments

$-$write functions declarations above and their definitions below the main function

$-$add comments for functions declarations