Need help on all four parts. Don't know where to start.

In 2021, Artea Corporation began manufacturing a product with a selling price of $78 per unit. During 2021 and 2022 the following costs were incurred: Required: a. Assume the company uses absorption costing. Compute the unit product cost in each year. b. Assume the company uses variable costing. Compute the unit product cost in each year. c. Assume the company uses absorption costing. Prepare an income statement for each year. d. Assume the company uses variable costing. Prepare an income statement for each year