Maia's Bike Shop Uses the Perpetual Inventory System and Had

Maia's Bike Shop uses the perpetual inventory system and had the following transactions during the month of May:
$\begin{array}{|l|l|}\hline \text { May 3 } & \begin{array}{l}\text { Sold merchandise to a customer on credit for } \$ 600, \text { terms } 2 / 10, \mathrm{n} / 30 . \text { The cost } \\\text { of the merchandise sold was } \$ 350 .\end{array} \\\hline \text { May 4 } & \begin{array}{l}\text { Sold merchandise to a customer for cash of } \$ 425 . \text { The cost of the merchandise } \\\text { was } \$ 250 .\end{array} \\\hline \text { May 6 } & \begin{array}{l}\text { Sold merchandise to a customer on credit for } \$ 1,300, \text { terms } 2 / 10, \mathrm{n} / 30 . \text { The } \\\text { cost of the merchandise sold was } \$ 750 .\end{array} \\\hline \text { May 8 } & \begin{array}{l}\text { The customer from May 3 returned merchandise with a selling price of } \$ 100 . \\\text { The cost of the merchandise returned was } \$ 55 .\end{array} \\\hline \text { May 31 } & \begin{array}{l}\text { The customer from May 6 paid the full amount due, less any appropriate } \\\text { discounts earned. }\end{array} \\\hline\end{array}$
Prepare the required journal entries that Maia's Bike Shop must make to record these transactions.