Which expressions are equivalent to the one below? check all that apply. two to the fifth power times two to the X

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.