I need it ASAP for 20 points and brainliest

The linear function f(x) = 0.2x + 79 represents the average test score in your math class, where x is the number of the test taken. The linear function
g(x) represents the average test score in your science class, where x is the number of the test taken

x g(x)
1 86
2 84
3 82

Part A: Determine the test average for your math class after completing test 2 (2 points)

Part B: Determine the test average for your science class after completing test 2 (2 points)

Part C: Which class had a higher average after completing test 47 Show work to support your answer. (6 points)