Answer:
Adjusting Journal Entry on December 31, 2021
S/N Accounts&Explanation Debit Credit
1. Insurance Expenses $1,155
($1,980*7/12)
Prepaid Insurance $1,155
2. Rent Expenses $5,408
($6,760*4/5)
Prepaid rent $5,408
3. Unearned service revenue $1,680
($3,780 *4/9)
Service revenue $1,680
4. Maintenance&repair Exp. $1,040
($2,080*1/2)
Prepaid cleaning $1,040
5. Unearned service earned $1,065
($1,560-$495)
Service earned $1,065