Find the constant rate of change (slope).

5

Step-by-step explanation:

The slope is given by

m = ( y2-y1)/(x2-x1)

We can use any two sets of points.  I like to use the first and the last

m = (15-0)/(4-1)

m = (15/3)

   = 5

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

answer: 30

step-by-step explanation: its 30 because im a basketball player and stephen curry hits most of his shots so if you put 30 you might make the shot goodluck