Polina’s math scores are shown in the table.

polina’s math scores

math scores

72

65

75

88

90

what is the mean absolute deviation of her math scores?
5.4
6.4
7.8
8.8

What is the inverse of the function f(x) = 2x + 1?

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14