Will give Brainliest! If you type random things I will get my points back, and your question removed. Please do not copy other people, I already have "Part A" done, I just need your help to finish it because I'm stuck. The linear function f(x) = 0.9x + 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 78
2 79
3 80

Part A: Determine the test average for your math class after completing test 2. (2 points) f(x) = 80.8

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 4? Show work to support your answer. (6 points)

Thank you for taking the time to read this, I really appreciate it!