To find out how many days Jason can feed his dogs from the 25-pound bag of dry dog food, we need to divide the total weight of the dog food by the amount he uses each day.
The total weight of the dog food is 25 pounds, and Jason uses 3 pounds each day. We can calculate the number of days by performing the division:
\[ \text{Number of days} = \frac{\text{Total weight of dog food}}{\text{Daily usage}} = \frac{25 \text{ pounds}}{3 \text{ pounds per day}} \approx 8.33 \]
Since Jason can only feed his dogs for whole days, we take the whole number part of this result:
\[ \text{Number of complete days} = 8 \]
Thus, Jason can feed his dogs for 8 days. On the 9th day, he will not have enough food to feed them for a whole day.