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 = 4 and z = 7, what is the value of 5b(b - z)?
| -56 | |
| -15 | |
| -60 | |
| 8 |