How long is x? How long is y?

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

Which of the following three dimensional figures has a circle as it’s base

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle