calculate the distance between the pairs of coordinates, and classify them according to the distance between them​

Question 5 spring semester final exam math evaluate

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

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?