Ineed with two middle school math questions someone : )

What does it mean by solve the exponential equation for x?

What is the value of 1/3x + 7x when x = 5

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