Willow Window Washing Services prepares adjustments monthly and shows the following selected accounts on its December 31, 2020, unadjusted trial balance:

Account	Debit			Credit
Prepaid insurance	$	3,900
Prepaid office rent		26,000
Prepaid subscriptions		1,360
Prepaid equipment rental		28,000

Required: Prepare the required monthly adjusting entries at December 31, 2020, based on the following additional information:

1. The remaining balance in Prepaid Insurance was for a six-month insurance policy purchased for $7,800 and in effect on September 1, 2020.
2. $5,800 of the balance in Prepaid Office Rent had not been used as at December 31, 2020.
3. $1,200 of the balance in Prepaid Subscriptions had been used as at December 31, 2020.
4. The company paid $36,000 on April 1, 2020, to rent equipment for a three-year period beginning April 1, 2020.