Micro Computer Services began operations on August 1, 2017. At the end of August 2017, management prepares monthly financial statements. The following information relates to August. 

1. At August 31, the company owed its employees $800 in salaries and wages that will be paid on September 1. 

2. On August 1, the company borrowed $30,000 from a local bank on a 15-year mortgage. The annual interest rate is 10%. 

3. Revenue for services performed but unrecorded for August totaled $1,100. 

Prepare the adjusting entries needed at August 31, 2017.