Answer: 32 jars
Step-by-step explanation: Brynn can put 8 ounces of water in each jar, and there are two gallons of water. In a gallon of water, there are 128 ounces, meaning two gallons would be 256 ounces. 256 ounces divided by the 8 ounces she puts into each jar means that she can fill 32 jars with eight ounces each.