Please show all work.

Tiago makes three models of camera lens. Its product mix and contribution margin per unit follow: Contribution Margin Percentage of Unit sales unit Lens A Lens B ens C 38% 31 31 $32 24 37 Suppose the product mix has shifted to 43/29128 Required 1. Deternine the new weighted-average contribution margin per unit. (Round your intermediate calculation to 2 decimal places. Round your answer to 2 decimal places.) ighted Average CM per unit 2. Determine the number of units of each product that Tiago must sell to break even if fixed costs are $191,000. (Round intermediate calculations to nearest whole number. Round your answers up to the next whole number.) Units ofA Units of B Units of C Units Units Units 3. Determine how many units of each product must be sold to generate a profit of $64,000. (Round intermediate calculations to nearest whole number. Round your answers up to the next whole number.) Units of A Units of B Units of C Units Units Units