Answer the Following Questions. (Show Your Work.)

Essay

Answer the following questions. (Show your work.)
a. A machine was purchased on July 1, 2009. It had a cost of $36,000 and an estimated useful life of nine years with zero value at that time. What is the machine's carrying value after four years?
b. On April 1, 2010, a company paid in advance $54,000 for three years' insurance. How much Prepaid Insurance remains on the balance sheet on December 31, 2010?
c. A company began the year with $800 in supplies, purchased $2,000 in supplies, and ended the period with $600 in supplies. How much is Supplies Expense for the period?
d. A company was paid $1,800 in advance for services to be performed. At year end, one-third had not yet been earned. How much in Service Revenue should be recorded?