Final answer:
After adjusting for the returned merchandise, Abbey Co. had a sales revenue of $25,300 and a cost of goods sold of $12,207, resulting in a gross profit of $13,093, which is an option (b).
Step-by-step explanation:
The student asked about the gross profit earned by Abbey Co. from transactions with Gomez Co. Considering all the data provided, one needs to calculate the profit by including the impact of the returned merchandise. First, the initial sale amount was $28,800, but there was a credit memo issued for $3,500 for the returned merchandise, so the adjusted sales amount is $28,800 - $3,500 = $25,300. The cost of the goods sold was originally $13,538, but we must subtract the cost of the returned goods, which was $1,331, resulting in an adjusted cost of goods sold of $13,538 - $1,331 = $12,207.
The gross profit is calculated by subtracting the adjusted cost of goods sold from the adjusted sales revenue. So, the gross profit will be $25,300 - $12,207 = $13,093. Therefore, the amount of gross profit earned by Abbey Co. on these transactions is $13,093, which corresponds to option (b).