10 points Middle school 8th grade math work

Write an equation that can be used to describe the relationship between x and y shown in the graph in the image.

Julia measured the high temperature in her town for one week. using the chart above, find the mean absolute deviation for the high temperatures. round your answer to the nearest tenth. be sure to show your work for finding: the mean of the set of data the distance of each number from the mean the mean absolute deviation

What is (28 + 7 + 6 + 3) x 1/2 show your work

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)