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 c = 1 and z = -9, what is the value of 5c(c - z)?
| 50 | |
| 144 | |
| -96 | |
| -60 |