Given the numbers:
[tex]\begin{gathered} 2.88 \\ -2.98 \\ \\ -2\frac{9}{10} \end{gathered}[/tex]You can identify that the positive number is the greatest because positive number numbers are greater than negative numbers:
[tex]2.88[/tex]You can convert the Mixed Number to a Decimal Number as follows:
1. Divide the numerator by the denominator.
2. Add the result to the whole number part.
Then, you get:
[tex]-2\frac{9}{10}=-(2+\frac{9}{10})=-(2+0.9)=-2.9[/tex]Now you can identify that:
[tex]-2.98<-2.9[/tex]Because -2.9 is closer to zero than -2.98.
Hence, you can order them from least to greatest:
[tex]-2.98,-2\frac{9}{10},2.88[/tex]Therefore, the answer is:
[tex]-2.98,-2\frac{9}{10},2.88[/tex]