During the most recent month, Ostriker Company began operations with a cash balance of $0 and made made cash sales of $81,000. During this same time period, the company paid $32,000 in cash expenses. Additionally, the company purchased supplies on account, $34,000, made sales on account, $90,000, and received cash on the credit sales $52,000. a. If cash at the end of the month totals $74,000, how much cash was paid on account