Final answer:
To express the rate of flow in cups per day, we convert quarts to cups and years to days. The rate of flow is approximately 0.0282 cups per day.
Step-by-step explanation:
To express the rate of flow in cups per day, we need to convert quarts to cups and years to days.
1 quart is equal to 4 cups, so 9 quarts is equal to 36 cups.
1 year is equal to 365 days, so 3.5 years is equal to 1277.5 days.
Therefore, the rate of flow is approximately 0.0282 cups per day.