Find the value of b. Then find the angle measures of the pentagon. b=

Question 2
The angle measures from least to greatest are
∘,
∘,
∘,
∘, and
∘.

Find the value of the cosine for angle a

Twelve less than a number is at most 20

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project