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 y = 7, what is the value of 7a(a - y)?
| 0 | |
| -252 | |
| -84 | |
| 56 |