Courtney got 64 out of a 75 correct on the test what is the best estimate of the percent Courtney got correct

(if f(x)=4x^2 and g(x)=x+1, find (f o g)(x)

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

Using elimination, what is -4x+2y=-12 4x+8y=-24