In June, Blackfly Ltd, received a $5,000 cash payment for work performed & billed the previous month. The company replanted a clear-cut area of northern Alberta for which it sent out an invoice for $20,000. At the beginning of the month the company had $1,000 of trees for planting. During the month the company purchased $4,000 more, and at the end of the month it was left with trees that had cost $1,500. The company's expenses were $1,000 in rent for its office and $3,000 in other expenses. Amortization on the truck and office equipment was calculated to be $1,500. The income tax rate is 10%. The expected life of the truck and office equipment when purchased new was 2 years, with no residual value and the amortization expense was based on the straight-line model. The original cost of the truck and office equipment was none of the listed answers are correct $ 36,000 $ 12,000 $24,000 $20,000