Part 1: The measure of an interior angle of a regular polygon is 120°. How many sides does the polygon have? Part 2: What is the measure in degrees of each exterior angle of this polygon?

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

hope this is what you were asking for!

step-by-step explanation:

just get this app called photo math it should be able to do those