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 = -2, what is the value of 7c(c - z)?
| 105 | |
| -40 | |
| 441 | |
| 28 |