For the month of July, Blackfly Ltd$.$ experienced$/$recorded the following transactions:

received a $$6000$ cash payment for work performed & billed the previous month.

replanted an area of northern Alberta forest for which it sent out an invoice totaling $$35000.$

At the beginning of the month, the company had $$2000$ of trees in inventory ready for planting.

During the month the company purchased $$7000$ tress for planting

at the end of the month it was left with trees still suitable for planting that originally cost $$2500.$

monthly expenses were: $$1500$ for office rent; $$3500$ in misc. expenses;

Amortization on the truck and office equipment was calculated to be $$1500$

The income tax rate is $10\%.$

The expected life of the truck and office equipment when purchased new was $4$ 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 $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

Question $65$ options:

$$36000$

$$6000$

$$72000$

$$69500$

none of the listed answers are correct