25 add them up Your welcome
Multiplication. If you need help just remember PEMDAS.
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Surface area = 2(12*12+15*12+15*12) = 1008
1008 * 4 = 4032
Example 2x + y =3
-2x -2x
——————————————
Y = 3 - 2x or y = -2x - 3
