Refer to the following merchandising transactions for Scout Systems.

Nov. $1$ Scout Systems purchases merchandise for $$3,500$ on credit with terms of $3/10,$ n$/30.$

$5$ Scout Systems pays for the previous purchase.

$7$ Scout Systems receives payment for returned defective merchandise of $$200$ that was purchased on November $1.$

$10$ Scout Systems pays $$310$ to transport merchandise to its store.

$13$ Scout Systems sells merchandise for $$5,600$ on account. The cost of the merchandise was $$3,300.$

$16$ A customer returns merchandise from the November $13$ transaction. The returned item sold for $$1,110$ and cost $$690.$ The item will be returned to inventory.

a$.$ Journalize the above transactions for Scout Systems assuming a periodic system. $($If no entry is required for a transaction$/$event$,$ select $"$No journal entry required" in the first account field.$)$

b$.$Journalize the above transactions for Scout Systems assuming a perpetual system.