typing please

A partial adjusted trial balance of Marine Repair Company at January 31, 2020, shows the following Marino Repair Company Adjusted Trial Balance (partial) January 31, 2020 Debit Credit Supplies..... $ 2,100 Prepaid Insurance... 9,600 Salaries and Wages Payable $1,310 Uneamed Revenue 3,000 Supplies Expense...... 3,800 Insurance Expense. 2,400 Salaries and Wages Expense 9,150 Service Revenue... 19,880 *********** ********* ****************************** RE Required: Answer the following questions, assuming the year begins January 1. Very Important: Do Not just provide an answer, show your work/calculations. (a) If the amount in Supplies Expense is the January 31 adjusting entry, and $2,750 of supplies was purchased in January, what was the balance in Supplies on January 1st? (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? (c) If $11,650 of salaries was paid in January, what was the balance in Salaries and Wages. Payable at the end of December 31, 20197 (d) If $16,400 was received in January for services performed in January, what was the balance in Uneamed Revenue at the end of December 31, 2019