Andrea Conaway opened Wonderland Photography on January 1 of the current year. During January, the following transactions occurred and were recorded in the company's books: <br/> 1. Conaway invested <img src="null"/>20,000 of photography equipment to the business. <br/> 3. The company paid <img src="null"/>5,700 cash for services provided during January. <br/> 5. The company purchased <img src="null"/>2,750 of services to customers on account. <br/> 7. The company paid cash of <img src="null"/>3,100 on the office equipment purchased in transaction #5 above. <br/> 9. Paid <img src="null"/>31,400.<br/> B、<img src="null"/>31,150.<br/> D、<img src="null"/>30,875.