E13.3B (L0 3) (Warranties) Incaviglia Company sold 400 copy-making machines in 2020 for $3,000 apiece, together with a one-year warranty. Maintenance on each machine during the warranty period averages $330. Instructions Prepare entries to record the sale of the copiers and the related warranty costs, assuming that the accrual method is used. Actual warranty costs incurred in 2020 were $24,000