Mathematics, 26.10.2020 19:40 nando3024

The linear function f(x) = 0.3x + 76 represents the average test score in your history class, where x is the number of the tests taken. Determine the test average for your history class after completing test 3. A.
76.9

B.
79.9

C.
76.3

D.
76
pls give explanation

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