The base of a triangular prism is a right triangle with a base of 6 feet and a height of 8 feet in a third side length of 10 feet the height of the prism is 10 feet find the surface area of prism

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