Exercise $5/5$: $($PC#$8$: Tip, Tax, and Total$)$

$(20$ Points$)$

Write a program that calculates the total amount of a meal purchased at a restaurant. The program should ask the user to enter the charge for the food,

then calculate the amounts of an $18$ percent tip and $7$ percent sales tax $($Must declare and use them as named constant$-5$ points$).$