How many questions do i need to answer to be able to dm

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

Which of the following is the shape of a cross section of the figure shown below

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?