Consider a function that describes how a particular car’s gas mileage depends on its speed. what would be an appropriate domain for this function?

Ineed with number 17 i don’t get it at alll

Empty box + box + empty box fill in the box is equal to 30 how

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