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 = 1, what is the value of 9c(c - x)?
| 0 | |
| 105 | |
| 270 | |
| -90 |