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 y = -9, what is the value of 4a(a - y)?
| -175 | |
| 448 | |
| 0 | |
| -54 |