Final answer:
To sort the students by their practice times, we compare the fractional parts of their mixed numbers. The order from least to greatest is Graham, Cody, Ryan, and Jonathan, as their practice times are 2 1/2, 2 1/3, 2 3/4, and 2 5/6 hours respectively.
Step-by-step explanation:
To list the students' names in order from the least amount of practice time to the greatest, we first need to compare their practice times. The practice times given are mixed numbers, which consist of a whole number and a fraction. To properly order them, we can look at the fractional part of each time since the whole number part is the same for all students. Here are the students' practice times in fractional form:
- Cody: 2 1⁄3
- Ryan: 2 3⁄4
- Graham: 2 1⁄2
- Jonathan: 2 5⁄6
Ordering these from the least to the greatest:
- Graham: 2 1⁄2
- Cody: 2 1⁄3
- Ryan: 2 3⁄4
- Jonathan: 2 5⁄6
Therefore, the correct order from the least amount of practice time to the greatest is: Graham, Cody, Ryan, and Jonathan.