What is the greatest integer smaller than n sqrt 250 ? a. 15 b. 16 17 d. 19 e 20

Ineed if you could explain and give me the answer you! this needs done

How to solve a simultaneous equation involved with fractions?

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