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 = 6 and z = 9, what is the value of -5b(b - z)?
| 36 | |
| 54 | |
| 162 | |
| 90 |