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 = 6 and z = -4, what is the value of a(a - z)?
| 60 | |
| 100 | |
| 108 | |
| 120 |