=10-29 During the busiest season of the year, Green-Gro Fertilizer produces two types of fertilizers. The standard type (X) is just fertilizer, and the other type (Y)

is a special fertilizer and weed-killer combination.

The following model has been developed to determine how much of each type should be produced to maximize profit subject to a labor constraint:

Maximize profit subject to 2 ho

= − + −

+ ≤

12 0 04 15 0 06 4 160 2 2 X X Y Y X Y

. .

urs X Y, ≥ 0 Find the optimal solution to this problem.