drivers are concerned with the mileage obtained by their automobiles. one driver has kept track of several tankfulls of gasoline by recording miles driven and used for each tankful$.$ Develop a program that will input the miles driven and gallons used for each tankful$.$ The program should calculate and display the miles per fallon obtained for each tankful$.$ After processing all input information, the program shoulld calculate and print the combined miles per gallon obtained for all tankfuls$.$