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 = -7, what is the value of 7c(c - z)?
| 0 | |
| 336 | |
| -84 | |
| -455 |