Only need help with question 5a and 6. Thank you!

Deckyard Company distributes a lightweight lawn chair that sells for $42 per unit. Variable expenses are $16.80 per unit, and fixed expenses total $158,760 annually Required: 1. What is the product's CM ratio? 601% 2. Use the CM ratio to determine the break-even point in sales dollars. Break-even point in sales dollars 264,600 3. The company estimates that sales will increase by $48,000 during the coming year due to increased demand. By how much should net operating income increase? Net operating income increases by 28,800