A company sells a monthly average of 600 white, 400 red and 200 blue horseshoe each month. The selling price of a white horseshoe is $25, a red...

A company sells a monthly average of 600 white, 400 red and 200 blue horseshoe each month. The selling price of a white horseshoe is $25, a red horseshoe is $60 and a blue horseshoe is $100. the cost of production for a white horseshoe is $18.50, a red horseshoe is $34.50 and a blue horseshoe is $65.50 Using operations involving vectors or matrices, show that average monthly profit is the same when calculated either as a total concept or as a per-unit item