On March 12. Medical Waste Services provides services on account to Grace Hospital for $9,000. terms 4/10. n/30. Grace pays for those services on March 20. For Medical Waste Services, record the entries on March 12 and March 20. Show all computations. On April 25, Foreman Electric installs wiring in a new home for $2, 200 on account. However, on April 27, Foreman's electrical work does not pass inspection, and Foreman grants the customer an allowance of $470 because of the problem. The customer makes full payment of the balance owed, excluding the allowance on April