Final answer:
To convert 4 gallons to quarts, multiply the number of gallons (4) by the conversion factor (4 quarts per gallon) to get 16 quarts.
Step-by-step explanation:
To determine how many quarts there are in 4 gallons, we must use the appropriate unit equivalence and conversion factor. Since gallons are larger than quarts, we need to multiply when converting from a larger unit (gallons) to a smaller unit (quarts). The unit equivalence is 1 gallon is equal to 4 quarts.
Now, let's multiply the number of gallons by the conversion factor:
- 4 gallons × 4 quarts/gallon = 16 quarts
Therefore, the answer is 4 gallons is equal to 16 quarts.