The regular octagon shown is divided into 8 congruent triangles. Each triangle has an area of 21.7 square centimeters. The Perimeter of the octagon is 48 centimeters.

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer