Davis Company was started on January 1, 2014. During the month of January, Davis earned $5,200 of revenue and incurred $3,300 of expenses. During the remainder of 2014, Davis earned $55,000 and incurred $45,000 of expenses. Davis closes its books on December 31 of each year. b. Determine the balance in the Revenue and Expense accounts as of January 31, 2014