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 = -9 and y = 9, what is the value of a(a - y)?
| 24 | |
| 162 | |
| -10 | |
| 112 |