Two students are working on the same problem: A juice box has 20% more juice in its new packaging. The original packaging held 12 fluid ounces. How much juice does the new packaging hold? Here is how Priya set up her double number line. A double number line for “juice in fluid ounces” with 8 evenly spaced tick marks. The top number line, the number 0 is on the first tick mark, 12 on the sixth, and 14 point 4 on the seventh. The bottom number line, starting with the first tick mark, zero percent, 20 percent, 40 percent, 60 percent, 80 percent, 100 percent, 120 percent and 140 percent are labeled. Here is how Clare set up her double number line. A double number line for “juice in fluid ounces” with 8 evenly spaced tick marks. The top number line has the number zero on the first tick mark, 12 on the fifth, and 15 on the sixth. The bottom number line, starting with the first tick mark, zero percent, 20 percent, 40 percent, 60 percent, 80 percent, 100 percent, 120 percent and 140 percent are labeled. Do you agree with either of them? Explain or show your reasoning.