(Upload as Source File) Write a program to calculate the predicted GDP of a country after a certain number of years. The program should first ask the user to enter current GDP, annually increase rate (i.e., the percentage of increase in a year), and the number of years to be considered. Let us suppose that the annually increase does not change. Then, the program would calculate the predicted GDP after the number of years inputted by the user 4. (Upload as Source File) The grade level of undergraduate college students is typically determined to the following schedule: 5. Number of Credits Completed Less than 32 32 to 63 64 to 95 96 or more Grade Level Freshman Sophomore Junior Senior Using this information, write a C++ program that accepts the number of credits a student has completed as a user input, determines the students grade level, and displays the grade level