The sum of 3 numbers is 45 the fist number is 4 times the second while the third us 9 more than the second

The solution set for 5v2 – 125 = 0 is

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

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.