A review of the ledger of Terrell Company at December 31, 2012, produces these data pertaining to the preparation of annual adjusting entries.

1. Prepaid Insurance $18,279. The company has separate insurance policies on its buildings and its motor vehicles. Policy B4564 on the building was purchased on July 1, 2011, for $11,610. The policy has a term of 3 years. Policy A2958 on the vehicles was purchased on January 1, 2012, for $8,604. This policy has a term of 18 months.

2. Unearned Sales Revenue $27,168: The company began selling magazine subscriptions on October 1, 2012, on an annual basis. The selling price of a subscription is $24. A review of subscription contracts reveals the following.

Subscription Start Date

Number of Subscriptions

October 1 250

November 1 312

December 1

570

1,132

3. Notes Payable, $46,400: This balance consists of a note for 6 months at an annual interest rate of 7%, dated October 1.

4. Salaries Payable $0: There are 12 salaried employees. Salaries are paid every Friday for the current week. 5 employees receive a salary of $630 each per week, and 7 employees earn $740 each per week. Assume December 31 is a Wednesday. Employees do not work weekends. All employees worked the last 3 days of December.

Calculate the following amounts.

1. Insurance expense

2. Sales revenue

3. Interest expense

4. Salaries and wages expense