$1.$ Write a program that converts Celsius temperatures to Fahrenheit temperatures. The formula is as follows:

F$=9/5*$C$+32$

The program should ask the user to enter a temperature in Celsius, then display the temperature converted to Fahrenheit. $(15$ points$)$

$2$: 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 a $18$ percent tip and $7$ percent sales tax. Display each of these amounts and the total. $(15$ points$)$