Can someone help me determine the correct responses to this question?

Tim's Bicycle Shop sells 21-speed bicycles. For purposes of a cost-volume-profit analysis, the shop owner has divided sales into two categories, as follows: Sales Price $1,400 Invoice Cost $ 750 Sales Commission $90 Product Type High-quality Medium- quality 800 470 70 Three-quarters of the shop's sales are medium-quality bikes. The shop's annual fixed expenses are $147,400. (In the following requirements, ignore income taxes.) Required: 1. Compute the unit contribution margin for each product type. 2. What is the shop's sales mix? 3. Compute the weighted-average unit contribution margin, assuming a constant sales mix. 4. What is the shop's break-even sales volume in dollars? Assume a constant sales mix. 5. How many bicycles of each type must be sold to earn a target net income of $100,500? Assume a constant sales mix. Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Required 4 Required 5 Compute the unit contribution margin for each product type. Bicycle Type Unit Contribution Margin High-quality Medium-quality Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Required 4 Required 5 What is the shop's sales mix? Sales Mix Bicycle Type High-quality Medium-quality % % Required 1 Required 2 Required 3 Required 4 Required 5 Compute the weighted average unit contribution margin, assuming a constant sales mix. (Round your answer to 1 decimal place.) Weighted-average unit contribution margin Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Required 4 Required 5 What is the shop's break-even sales volume in dollars? Assume a constant sales mix. Break-even sales volume Required 1 Required 2 Required 3 Required 4 Required 5 How many bicycles of each type must be sold to earn a target net income of $100,500? Assume a constant sales mix. Bicycle Type Number of Bicycles High-quality Medium-quality