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 = 4 and z = -9, what is the value of -9b(b - z)?
| 108 | |
| -468 | |
| -10 | |
| 360 |