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 = 4 and y = 9, what is the value of 4c(c - y)?
| 21 | |
| -960 | |
| -80 | |
| -36 |