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 c = 5 and z = 2, what is the value of 9c(c - z)?
| 24 | |
| 135 | |
| -432 | |
| 48 |