Can someone PLEASE HELP again? I can't seem to get the "y" value right. You don't have to solve for "y," but you can if you'd like.

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

What is the area of the trapezoid shown ?

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