You have 72 feet of wire to enclose three pens.

One side is a wall that needs no fence.

The outside fencing (thick lines) requires 4 strands of wire.

The inside dividers (thin lines) require 1 strand of wire.

What values for x and y will create a fence that encloses the maximum total area for the pens?

x =

y =

Enter each answer as a whole number or as

a reduced fraction (such as 4/5, 35/4 or 11/2).