Section: Math

26) Frank measured the amount of liquid that evaporated over a 12-day period from his container with l equaling ounces of liquid. At the end of the day two, it had lost 3 ounces. At the end of day seven, an additional 6 ounces. By the end of day 12, the container had lost one-third of what remained at the end of day seven. Which of the following represents the remaining amount of liquid in ounces in Frank's container at the end of day 12?

1. ^l-3/₁₂
2. ^l-3/₂ - 9
3. I-(^l-9/₃)
4. ¹/₃ l-12