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 = -8 and y = -4, what is the value of -9a(a - y)?
| -70 | |
| -288 | |
| 189 | |
| -90 |