To determine if the quantities in the data table are in a proportional relationship, we need to check if the ratio of miles traveled to hours biked is constant.
Let's calculate the ratios for each entry in the table:
- For 1 hour: \( \frac{12 \text{ miles}}{1 \text{ hour}} = 12 \)
- For 2 hours: \( \frac{26 \text{ miles}}{2 \text{ hours}} = 13 \)
- For 3 hours: \( \frac{30 \text{ miles}}{3 \text{ hours}} = 10 \)
- For 4 hours: \( \frac{48 \text{ miles}}{4 \text{ hours}} = 12 \)
Now let's analyze these ratios:
- The first ratio (1 hour) is 12.
- The second ratio (2 hours) is 13.
- The third ratio (3 hours) is 10.
- The fourth ratio (4 hours) is 12.
Since the ratios are not all the same, the relationship is not proportional.
Therefore, the correct response is: No, not all of the ratios are proportional or have equivalence.