Reading:
The diagram shows the amounts of liquid (in fluid ounces) in two bottles of energy drinks that just came off the fill and cap machine.
1. The labels indicate that the bottles contain 12 fluid ounces. Express the contents of each bottle as its amount above (positive) or below (negative) 12 fluid ounces.
2. Of the 10 bottles that were filled incorrectly, which two have a collective error of 0 fluid ounces? Use the values from Exercise 1 to justify your answer.
3. A worker discards bottles that are not within the fluid ounces. What percentage of these 12 bottles are half wasted?
4. Do you think the filling mechanism should be adjusted? If so, how? Use the values from Exercise 1 to justify your answer.