Answer: $0.04 per fluid ounce.
Step-by-step explanation:
Let's conver 2 quarts to ounces, as following:
You know that she buys a 2-quart bottle of juice (or 64 ounces) for $2.56, therefore, to find the unit rate of the cost of the juice you must divide $2.56 by 64 ounces.
Then, you obtain the following result:
( $0.04 per fluid ounce)