can someone please help mw with this question

Night Shades Incorporated (NSI) manufactures biotech sunglasses. The variable materials cost is $1.4 per unit, and the variable labor cost is $2.38 per unit. a. What is the variable cost per unit? b. Suppose the company incurs fixed costs of $450,000 during a vear in which total producvon is 247,500 units. What are the total costs for the year? c. If the selling price is 512 per unit, what is the NSt break-even on a cash basis? c. If the selling price is $12 per unit, what is the NSI break-even on a cash basis? d. If depreciation is $160.875 per year, what is the accounting break-even point