Exercise 19-06 Yard Tools manufactures lawnmowers, weed-trimmers, and chainsaws. Its sales mix and unit contribution margin are as follows. Unit Contribution Margin Sales Mix Lawnmowers 20 % $35 50 % $21 Weed-trimmers Chainsaws 30 % $40 Yard Tools has fixed costs of $4,277,500. Compute the number of units of each product that Yard Tools must sell in order to break even under this product mix. Lawnmowers units Weed-trimmers units Chainsaws units