Find the product of (x+2y)^2

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.

Answer pls man im trying to get out of summer school