Exercise 20-6 Yard Tools manufactures lawnmowers, weed-trimmers, and chainsaws. Its sales mix and unit contribution margin are as follows. Sales Mix Unit Contribution Margin Lawnmowers 20 % $30 Weed-trimmers 50 % $20 Chainsaws 30 % $40 Yard Tools has fixed costs of $4,200,000. Compute the number of units of each product that Yard Tools must sell in order to break even under this product mix. (Use Weighted-Average Contribution Margin Ratio rounded to 2 decimal places e.g. 0.25 and round final answers to 0 decimal places, e.g. 2,510.) Lawnmowers units Weed-trimmers units Chainsaws units