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 = 2 and z = 9, what is the value of 3c(c - z)?
| 12 | |
| -42 | |
| -48 | |
| 49 |