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4) The local t-shirt shop sells shirts that retail for $12. Quantity discounts are given as follow: Wiite a program that prompts the user for the number of shirts required and then computes the total price. Make sure the program accepts only nonaegative input. Use the following sample runs to guide you: Sample Run : How many shirts would you like? 4 The cost per shirt is $12 and the total cost is $48 Fample Run 2: How many shirts would you like? 0 The cost per shilt is $12 and the total cost is $0 Sample Run 3: How many shirts would you like? 8 The cost per shirt is $10.80 and the total cost is $86.40 Sample Run 4: How many shirts would you like? 2 Invalld Input: Please enter a nonnegative Integer 5) Write a program that will convert miles to kilometers and kilometers to miles. The user will indicate both a number (representing a distance) and a choice of whether that number is in miles to be converted to kilometers or kilometers to be converted to miles. Each conversion is done with a value returning function. You may use the following conversions. 1kilometer=.621miles1mile=1.61kilometers Sample Rum: Please input 1 Convert miles to kiloneters 2 Convert kiloneters to niles 3 Quit 1 Please input the alles to be converted 120 120 miles =193.2kil loneters Please input 1 Convert niles to kiloneters 2 Convert kiloneters to niles 3 Quit 2 Please input the kilometers to be converted 235 235 kiloneters =145.935 niles Please input 1 Convert miles to kiloneters 2 Convert kiloneters to niles