Supplies $ 800 prepaid insurance 1,800 salaries and wages payable $ 800 unearned service revenue 850 supplies expense 800 insurance expense 300 salaries and wages expense 2,700 service revenue 3,200 answer the following questions, assuming the year begins january 1. (a) if the amount in supplies expense is the january 31 adjusting entry and $1,100 of supplies was purchased in january, what was the balance in supplies on january 1? supplies balance $entry field with incorrect answer 1100 (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? total premium $entry field with correct answer 3600 purchase date entry field with incorrect answer (c) if $3,200 of salaries was paid in january, what was the balance in salaries and wages payable at december 31, 2018? salaries and wages payable $entry field with incorrect answer 4000