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 = -9, what is the value of 6a(a - z)?
| 0 | |
| 540 | |
| -40 | |
| -7 |