To order the amounts saved from least to greatest, let's compare their savings:
- Sami: $41.79
- Charlotte: $38.91
- Celeste: $41.68
From this, we can see that:
- Charlotte has the least amount: $38.91
- Celeste has the next amount: $41.68
- Sami has the greatest amount: $41.79
Therefore, the correct order from least to greatest is:
Charlotte, Celeste, Sami.
So the correct response is:
Charlotte, Celeste, Sami.