Help, It this correct?

The following transactions occur for the Hamilton Manufacturers. 10 (a) Provide services to customers on account for $4,100. (b) Purchase equipment by signing a note with the bank for $10,800. (c) Pay advertising of $1,500 for the current month. Analyze each transaction and indicate the amount of increases and decreases in the accounting equation. (Enter "O" wherever required.) Assets = Liabilities + Stockholders' Equity s 4,100 (a) S 4,100 (b) S 10,800 - (c) S (1,500) $ 10,800 + + S (1,500)