i need help with this question.

Super Sales Company is the exclusive distributor for a high-quality knapsack. The product sells for $100 per unit and has a CM ratio of 30%. The company's fixed expenses are $429,000 per year. The company plans to sell 16,000 knapsacks this year. Required: 1. What are the variable expenses per unit? 2. Use the equation method for the following: a. What is the break-even point in units and in sales dollars? b. What sales level in units and in sales dollars is required to earn an annual profit of $117,000 ? b. What sales level in units and in sales dollars is required to earn an annual profit of $117,000? c. What sales level in units is required to earn an annual after-tax profit of $117,000 if the tax rate is 20% ? d. Assume that through negotiation with the manufacturer, Super Sales Company is able to reduce its variable expenses by $9 per unit. What is the company's new break-even point in units and in sales dollars? (Do not round intermediate calculations. Round your final answers to the nearest whole number.)