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 = 7 and z = 8, what is the value of 3c(c - z)?
| 0 | |
| -816 | |
| -21 | |
| -112 |