Solve the Problem $\mathrm { f } = 8 \mathrm { x } + 12 \mathrm { y }$

Multiple Choice

Solve the problem.
-Find the maximum value of $\mathrm { f } = 8 \mathrm { x } + 12 \mathrm { y }$ subject to the following constraints.
$$\begin{array} { l } 40 x + 80 y \leq 560 \\6 x + 8 y \leq 72 \\x \geq 0 \\y \geq 0\end{array}$$

A) Maximum of 92
B) Maximum of 120
C) Maximum of 96
D) Maximum of 100