1. A cell phone manufacturing company can assemble 10 cell phones per day and the factory runs for x days. The cost of a assemble machine is OR 60000, the cost to make one cell phone is OR 250 (including labor, materials, etc.). If the sale price per cell phone is OR 280. After how many days the factory will be at breakeven point.

2. The total cost function of firm is Cl)- 45 - 15x+ x+22r', produces x items as output.

a. Find average total cost function.

b. Find average variable cost function.

c. Find average fixed cost function for 5 items.