Analyze adjusted trial balance.

A partial adjusted trial balance of West Company at January 31, 2021, shows the following.

WEST COMPANY

Adjusted Trial Balance

January 31, 2021

DebitCredit

Supplies.............................................................................................$2,800

Prepaid Insurance..............................................................................9,600

Salaries and Wages Payable.............................................................$3,200

Unearned Revenue...........................................................................3,000

Supplies Expense..............................................................................3,800

Insurance Expense............................................................................1,600

Salaries and Wages Expense............................................................7,200

Service Revenue...............................................................................8,000

Instructions

Answer the following questions, assuming the year begins January 1.

(a)If the amount in Supplies Expense is the January 31 adjusting entry, and $3,400 of supplies was purchased in January, what was the balance in Supplies on January 1?

(b)If the amount in Insurance Expense is the January 31 adjusting entry, and the original insurance premium was for one year, what was the total premium and when was the policy purchased?

(c)If $10,000 of salaries was paid in January, what was the balance in Salaries and Wages. Payable at December 31, 2020?

(d)If $6,400 was received in January for services performed in January, what was the balance in Unearned Revenue at December 31, 2020?