To find out how many ounces are in 1 gallon, we can look at the relationship provided in the table.
From the table:
- 5 gallons = 640 ounces
- 4 gallons = 512 ounces
- 3 gallons = 384 ounces
- 2 gallons = 256 ounces
To find the number of ounces in 1 gallon, divide the number of ounces for a known number of gallons by that number of gallons.
Using the first row as an example:
\[ \text{Ounces per gallon} = \frac{640 \text{ ounces}}{5 \text{ gallons}} = 128 \text{ ounces per gallon} \]
Thus, there are 128 ounces in 1 gallon.