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 -9c(c - x)?
| 280 | |
| 0 | |
| -630 | |
| -12 |