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 b = -3 and y = 7, what is the value of 9b(b - y)?
| 720 | |
| -306 | |
| -495 | |
| 270 |