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 = -3, what is the value of 8a(a - y)?
| -40 | |
| 40 | |
| -6 | |
| 864 |