The Nike Corporation produces athletic shoes. Last month, it produced 8,000 pairs of shoes at a total cost of $50,000. When production increased to 10,000 pairs, the total cost rose to $60,000.

i) Calculate the fixed cost per pair of shoes.

ii) Determine the variable cost per pair of shoes.

iii) If the company expects to produce 12,000 pairs next month, what would be the expected total cost?