When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
If a = -3 and y = 2, what is the value of 9a(a - y)?
| 126 | |
| 42 | |
| 120 | |
| 135 |