PLS answer these questions, these are part of a test!

What is the first step of an indirect proof of a number that is divisible by two

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

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3