How many times would a coin have to show heads in 50 tosses to have an experimental probability of 20% more then the theoretical probability of getting heads?

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

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

If g^-1(x) is the inverse of g (x) which statement must be true