Spartan, Inc., regularly sells chemicals to Grieder Supply on terms 4/10, n/30 and records sales at gross. During a recent month, the two firms engaged in the following transactions:

a. Spartan sold merchandise with a list price of $37,000.

b. Spartan sold merchandise with a list price of $52,000.

c. Grieder paid for the purchase in transaction a within the discount period.

d. Grieder paid for the purchase in transaction b after the discount period.

Required:

1. Provide the journal entries for Spartan to record the sales in a and b.

2. Provide the journal entry to record Grieder's payment in c.

3. Provide the journal entry to record Grieder's payment in d.