To determine the order from least to greatest of the provided decimals, let's analyze each set:
- 1.09, 1.9, 1.92 - This is in correct order: 1.09 < 1.9 < 1.92
- 1.09, 1.9, 1.92 - Same as above, also in correct order.
- 1.9, 1.09, 1.09 - Incorrect order; 1.9 is greater than 1.09.
- 1.9, 1.09, 1.09 - Same as above; still incorrect.
- 1.9, 1.09, 1.09 - Same issue.
- 1.9, 1.09, 1.09 - Again, incorrect order.
- 1.9, 1.09, 1.00 - Incorrect; 1.9 is greater than 1.09 and 1.00.
- 1.99, 1.9, 1.09 - Incorrect order; 1.99 is greatest.
- 1.99, 1.9, 1.09 - Same as above.
The correct set in order from least to greatest is:
1.09, 1.9, 1.92
So, the first or second option (both are the same) is the correct sequence.