Help plz , i don't know how to find it

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 owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer

Find the percent error of the measurement 4 cm