Need solved ASAP with formula used thanks!

E6-18 Analyzing Multiproduct CVP [LO 6-6] Tiago makes three models of camera lens. Its product mix and contribution margin per unit follow: Percentage of Unit sales Contribution Margin per unit Lens A Lens B Lens C 24% 43 S37 29 42 Required 1. Determine the weighted-average contribution margin per unit. (Round your intermediate calculations and final answer to 2 decimal places.) eighted Average CM per unit 2. Determine the number of units of each product that Tiago must sell to break even if fixed costs are $185,000. (Round intermediate calculations and final answers to the nearest whole number.) Units of A Units of EB Units of C Units Units Units 3. Determine how many units of each product must be sold to generate a profit of $71,000. (Round intermediate calculations and final answers to the nearest whole number.) Units of A Units of B Units of C Units Units Units