Ceres Computer Sales Uses the Perpetual Inventory System and Had

Ceres Computer Sales uses the perpetual inventory system and had the following transactions during the month of December:
$\begin{array}{|c|c|l|}\hline \text { Dec } & 1 & \begin{array}{l}\text { Sold merchandise on credit for } \$ 5,000 \text {, terms } 3 / 10, n / 30 \text {. The items sold had a } \\\text { cost of } \$ 3,500 \text {. }\end{array} \\\hline & 3 & \text { Purchased merchandise for cash, } \$ 720 \text {. } \\\hline & 4 & \text { Purchased merchandise on credit for } \$ 2,600 \text {, term } 1 / 20, \mathrm{n} / 30 \text {. } \\\hline & 5 & \begin{array}{l}\text { Issued a credit memorandum for } \$ 300 \text { to a customer who returned me } \\\text { purchased November } 29 \text {. The returned items had a cost of } \$ 210 \text {. }\end{array} \\\hline& 11 & \text { Received payment for merchandise sold December } 1 . \\\hline &15 & \begin{array}{l}\text { Received a credit memorandum for the return of faulty merchandise purchased on } \\\text { December } 4 \text { for } \$ 600 \text {. }\end{array} \\\hline &18 & \begin{array}{l}\text { Paid freight charges of } \$ 200 \text { for merchandise ordered last month. (FOB shipping } \\\text { point). }\end{array} \\\hline &23 & \begin{array}{l}\text { Paid for the merchandise purchased December } 4 \text { less the portion that was } \\\text { returned. }\end{array} \\\hline& 24 & \begin{array}{l}\text { Sold merchandise on credit for } \$ 7,000, \text { terms } 2 / 10, n / 30 . \text { The items had a cost of } \\\$ 4,900 .\end{array} \\\hline &31 & \text { Received payment for merchandise sold on December } 24 .\\ \hline\end{array}$
Required: Prepare the general journal entries to record these transactions.