Two questions.. will give branliest answer to whoever gives the correct answers.

7. the polygon angle-sum theorem states the following: the sum of the measures of the angles of an n-gon is

a. n-2/180 degrees
b. (n - 1) 180 degrees
c. 180 degrees /n-1
d. (n-2) 180 degrees

9. the measure of each exterior angle of a regular pentagon is the measure of each exterior angle of a regular nonagon.

a. greater than
b. less than
c. equal to