There are chickens and cows in a pasture. the farmer counts 40 heads and 100 feet. how many cows are in the pasture, and how many chickens are in the pasture?

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