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 % $34 Weed-trimmers 50 % $23 Chainsaws 30 % $37 Yard Tools has fixed costs of $4.410.000. 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