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 = 7, what is the value of 5a(a - y)?
| 336 | |
| -364 | |
| 720 | |
| 440 |