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 = 2 and z = 3, what is the value of 9b(b - z)?
| -18 | |
| 1071 | |
| 210 | |
| 8 |