Willow Window Washing Services prepares adjustments monthly and shows the following selected accounts on its December 31. 2020, unadjusted trial balance: Account Prepaid insurance Prepaid office rent Prepaid subscriptions Prepaid equipment rental Debit Credit $ 3,510 19,500 1,230 24,360 Required: Prepare the required monthly adjusting entries at December 31, 2020, based on the following additional information a. The remaining balance in Prepaid Insurance was for a six-month Insurance policy purchased for $7,020 and in effect on September 1, 2020, b. $4,500 of the balance in Prepaid Office Rent had not been used as at December 31, 2020. c. $1,070 of the balance in Prepaid Subscriptions had been used as at December 31, 2020. d. The company paid $31,320 on April 1, 2020, to rent equipment for a three-year period beginning April 1, 2020.