What is the square root of 81? (chat room)

What is the measure of angle tvu shown in the diagram below

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

The vertices of a triangle are a(7.5), b(4,2), and c19. 2). what is