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 a = -4 and z = 5, what is the value of -3a(a - z)?
| -108 | |
| 18 | |
| 64 | |
| -320 |