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 = 5 and x = 9, what is the value of -4c(c - x)?
| 18 | |
| 80 | |
| -24 | |
| -10 |