**Java Languge**

3- A cars miles-per-gallon (MPG) can be calculated with the following formula:

MPG = Miles driven / Gallons of gas used

Write a program that asks the user for the number of miles driven and the gallons of gas used. It should calculate the cars miles-per-gallon and display the result on the screen.

4- Write a program that computes the tax and tip on a restaurant bill. The program should ask the user to enter the charge for the meal. The tax should be 6.75 percent of the meal charge. The tip should be 20 percent of the total after adding the tax. Display the meal charge, tax amount, tip amount, and total bill on the screen.

5- Write a program that asks the user to enter the name of his or her favorite city. Use a String variable to store the input. The program should display the following:

The number of characters in the city name

The name of the city in all uppercase letters

The name of the city in all lowercase letters

The first character in the name of the city

Submission guides:

• Submit your code as a .java or .txt file for each question.