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 = -9 and x = 5, what is the value of -5c(c - x)?
| -21 | |
| 72 | |
| -80 | |
| -630 |