Answer:
The answer is -2.9, -2
, -

Explanation:
Since the numbers get higher, the negative numbers that are like -2.9 and -2.3 are considered to be less than -1.9 because they are on the left side further from -1.9 and since -1.9 is closer to 0, it is greater than -2.9 and -2.3. The way I explained is just an example.