Please help. My code is acting up for the 3,4 and 5th part. Please in python too

Write a program that generates a test score average based on five test scores given by the user: 1) The user should first be prompted for the first name of the student. 2) The user should then be prompted for the last name of the student. 3) The user then should be prompted for five test scores sequentially. 4) For each test scores the program should print out the entered score and corresponding letter grade 5) The program should print out the overall average of the five-test scores and the corresponding letter grade. In addition to the main(), your program should define and call three other functions named student_name (), calc_average (), and determine_grade () as part of this process: - student_name () - should prompt the user for the student's first and last name. - calc_average () - should compute the averages of all five test scores given by the user. - determine_grade () - should assign the corresponding letter grade to a given score. See screenshot below as a reference for what your program should generate if written correctly: Enter first name of student: Lamar Enter last name of student: Jackson Enter Test Score 1: 90 Enter Test Score 2: 78 Enter Test Score 3: 55 Enter Test Score 4: 85 Enter Test Score 5: 100 The full name of student is: Lamar Jackson The score and letter grade entered for Test 1 is: 90 A