Final answer:
Mark saves $3,600 over a year by depositing $300 each month. His parents match his savings at the year's end, contributing an additional $3,600. Thus, the total saved in the account is $7,200.
Step-by-step explanation:
The question is asking us to calculate the total saved amount in a savings account by Mark over a year, including an additional amount contributed by his parents at the end of the year. Mark saves $300 every month for a year, which means he saves $300 × 12 months = $3,600.
At the end of the year, his parents deposit an additional amount equal to what he has saved, so they deposit another $3,600.
To find the total saved, we add Mark's savings to his parents' contribution: $3,600 (Mark's savings) + $3,600 (parents' contribution) = $7,200.
Therefore, the total amount saved in Mark's savings account at the end of the year, including his parents' contribution, is $7,200.