Respuesta :

Part A: A= (30)^2 + 2(30)(26) = 2460 inches squared
Part B: V= (1/3)(30)^2(26) = 7800 inches cubed
Part C: It helped evaluate the expressions because it tells us that you are supposed to do the exponent first.
Parentheses Exponent Multiplication Division Addition Subtraction(PEMDAS) or (Please Excuse My Dear Aunt Sally)