To determine which list shows the decimals in order from least to greatest, we can arrange each list:
- 0.31, 0.68, 0.16 → 0.16, 0.31, 0.68 (not in order)
- 0.42, 0.47, 0.46 → 0.42, 0.46, 0.47 (in order)
- 0.39, 0.49, 0.35 → 0.35, 0.39, 0.49 (not in order)
- 0.19, 0.23, 0.28 → 0.19, 0.23, 0.28 (in order)
The lists in order from least to greatest are:
- 0.42, 0.46, 0.47
- 0.19, 0.23, 0.28
The second list, 0.42, 0.47, 0.46, is the only one that is fully in order from least to greatest.