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 = -7 and x = 1, what is the value of 5b(b - x)?
| 360 | |
| 120 | |
| 280 | |
| -91 |