A review of the ledger of Wildhorse Company at December 31, 2021, produces the following important data for the preparation of annual adjusting entries: 1. Prepaid Advertising, December 31, 2021, unadjusted balance, $17,160. This balance consists of payments on two advertising contracts for monthly advertising in two trade magazines. The terms of the contracts are as follows: Contract A650 B974 First Month May 2021 October 2021 Amount $6,600 10,560 Number of Magazine Issues 222 12 24 $17,160 2. 3. 4. 5. Vehicles, December 31, 2021, balance. $64,910. The company owns two vehicles used for delivery purposes. The first. purchased for $28,910 on January 2, 2019, has an estimated seven-year useful life. The second, purchased for $36,000 on June 1, 2020, has an estimated eight-year useful life. Notes Payable, December 31, 2021, balance, $84,000. This consists of an eight-month, 6.0 % note, dated August 1. Interest is payable at maturity. Salaries Payable, December 31, 2021, unadjusted balance, $0. There are nine salaried employees. Salaries are paid every following Monday for a six-day workweek (Monday-Saturday). Six employees receive a salary of $780 per week, and three employees earn $590 per week. December 31, 2021, is a Friday. Unearned Revenue, December 31, 2021, unadjusted balance, $266,400. Wildhorse began renting office space to tenants in its new building on November 1. At December 31, Wildhorse had the following rental contracts that were paid in full for the entire term of the lease