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A coal mine cost $1,003,000 and is estimated to hold 50,000 tons of coal. There is no residual value. During the first year of operations, 6,000 tons are extracted and sold. Calculate depletion per unit. (Round your answer to the nearest cent.)

A) $10.03 B) $5.02 C) $20.06 D) $15.04

A man paid $31,680 for his property. Assuming that his cost of selling was 12%, what is the amount that the property must appreciate without showing a loss:

A: 24%; B: 112%; C: $2,420; D: $4,320.