Journalize the entries to correct the following errors: a. A purchase of supplies for $286 on account was recorded and posted as a debit to Supplies for $519 and as a credit to Accounts Receivable for $519. (Record the entry to reverse the error first.) If an amount box does not require an entry, leave it blank. b. A receipt of $4,802 from Fees Earned was recorded and posted as a debit to Fees Earned for $4,802 and a credit to Cash for $4,802. If an amount box does not require an entry, leave it blank.