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 y = -2, what is the value of 4c(c - y)?
| -42 | |
| -84 | |
| 56 | |
| 396 |