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 = -7 and z = 8, what is the value of 5a(a - z)?
| 525 | |
| 96 | |
| -90 | |
| 504 |