Answer:
Adjusting entries are entries that indicate the events of the company that have occurred but not yet recorded by the company.
a. DATE DESCRIPTION DEBIT CREDIT
Dec 31 Depreciation Expenses $7,000
2018 Accumulated Expenses $7,000
(Record depreciation on equipment )
b. DATE DESCRIPTION DEBIT CREDIT
Dec 31 Salary expenses $3,400
2018 Salary payable $3,400
(Record salary incurred but not paid)
c. DATE DESCRIPTION DEBIT CREDIT
Dec 31 Interest receivables $660
2018 (12,000 * 6% * 11/12)
Interest revenue $660
(Record of interest earned)
d. DATE DESCRIPTION DEBIT CREDIT
Dec 31 Insurance Expenses $11,250
2018 (15,000 * 9/12)
Prepaid Insurance $11,250
(Record payment of insurance expenses)
e. DATE DESCRIPTION DEBIT CREDIT
Dec 31. Supplies Expenses $1,500
2018 Supplies $1,500
(Record of supplies)
f. DATE DESCRIPTION DEBIT CREDIT
Dec 31, Deferred revenue $1,400
2018 (4,200 * 2 month / 6 month)
Service revenue $1,400
(Record advance payment for services provided)
g. DATE DESCRIPTION DEBIT CREDIT
Dec 31, Advertisement Expenses $1,000
2018 Prepaid Advertisement $1,000
(Record payment for advertisement)