Final answer:
The given information does not provide a direct answer to the question.
Step-by-step explanation:
The information provided does not directly answer the question about the percentage of children living within a 30-minute drive of their parents. However, it is important to note that the given data is about the percentage of children living in one-parent households and two-parent households. To calculate the percentage of children living within a 30-minute drive of their parents, we would need specific data on the distance between children and their parents. Without this information, it is not possible to determine the exact percentage.