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 = 3 and z = 4, what is the value of -7c(c - z)?
| 21 | |
| -30 | |
| 48 | |
| -144 |