Boston Mercantile does not handle a lot of cash sales; however, they accept both national credit cards as well as their own credit card, Boston Credit.

Please journalize the following transactions $($disregard COGS for this example$)$:

$($Memos are not required$).$ Use spaces to demonstrate good form for journal entries.

May $18$ Boston Credit has credit card sales that totaled $$15,000.$

May $20$ Mastercard credit card sales totaled $$18,000.$ Mastercard charges a service fee of $3\%.$

Jun $15$ Boston Credit credit card collected $$12,000$ from previous credit card sales.

Jun $18$ Interest charges of $6\mathrm{.}5\%$ were applied to the Boston Credit credit card balances.