Suppose that the functions f and g are defined for all real numbers x as follows.
f(x) = x+3
g(x) = 4x2
Write the expressions for ( g)(x) and (f+g)(x) and evaluate (f-)(-3).

Adan has decided to purchase an $9000 car. he plans on putting 20% down toward the purchase and financing the rest at 7.9% interest rate for 3 years. find his monthly payment a) $225.29 b) $298.81 c) $204.78 d) $236.89