What is the output of the function f(x) = x + 21 if the input is 4? When the input is 4, the output of f(x) = x + 21.

Find the vertex of the function given below y=x^2-6x+1

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

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