I would like to know the interest expense?

Mortgage Payable 33,600 Common Stock 59,833 Rent Revenue 9,000 Salaries and Wages Expense 3,000 Utilities Expense 800 Advertising Expense 500 $110,266 $110,266 Other data: 1. Insurance expires at the rate of $450 per month. 2. A count of supplies shows $1,070 of unused supplies on May 31. 3. (a) Annual depreciation is $3,840 on the building. (b) Annual depreciation is $3,240 on equipment. 4. The mortgage interest rate is 5%. (The mortgage was taken out on May 1.) 5. Unearned rent of $2,630 has been earned. 6. Salaries of $730 are accrued and unpaid at May 31