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 = 9 and y = 6, what is the value of 9b(b - y)?
| 243 | |
| 12 | |
| 55 | |
| 378 |