E6.6 (LO 2), AP Yard Tools manufactures lawnmowers, weed-trimmers, and chainsaws. Its sales mix and unit contribution margin are as follows. Compute break-even point in units for a company with more than one product. Yard Tools has fixed costs of $4,200,000. Instructions Compute the number of units of each product that Yard Tools must sell in order to break even under this product mix