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