A cellular company purchased $27,800 in cell phones on June 25. The terms of sale were 4/20, 3/30, n/60. Freight terms were F.O.B. destination. Returned goods amounted to $650. (a) What is the net amount due in $) if the cellular company sends the manufacturer a partial payment of $4,000 on July 20? (Round your answer to the nearest cent.) (b) What is the net date? August % late fee, how much in $) would the cellular company owe if it did not pay the balance by the net date? (Round your answer to the nearest (c) If the manufacturer charges a 4 cent.)