During the most recent month, Campbell Company began operations with a cash balance of $0 and made cash sales of $162,000. During this same time period, the company paid $64,000 in cash expenses. Additionally, the company purchased supplies on account $68,000, made sales on account, $180,000, and paid cash on account $12,000. a) If cash at the end of the month totals $148,000, how much cash was received on account? b) What is the total amount still to be paid? c) What is the total amount still to be received?