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 = -1 and y = 3, what is the value of 9a(a - y)?
| -176 | |
| -36 | |
| -240 | |
| 36 |