PLEASE HELP ITS TIMED WILL MARK BRAINLEST!!

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

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.