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 b = 1 and y = 8, what is the value of -9b(b - y)?
| 63 | |
| -30 | |
| -490 | |
| 1071 |