Sixty five percent of the 8th grade class is selling magazines for the class fundraiser. if 112students are selling magazines, how many students are in the 8th grade class

A. 5m + 40

see in the picture, u can see that the line passes through (0;40) and (10;90)

suppose: the equation of the line is y = am + b (a ≠ 0)

because the line passes through (0;40) => 40 = b

the line passes through (10;90)              => 90 = 10a + b

=> b = 40

    a = 5

=> y = 5m + 40

Step-by-step explanation: