#### Answer

$-0.8, \frac{7}{9}, \sqrt 3$

#### Work Step by Step

Convert each number to a decimal for comparison.
$\frac{7}{9}=\ \ \ \ \ \ \ \ 0.778$
$-0.8=-0.800$
$\sqrt 3=\ \ \ \ \ \ 1.732$
Now, we can order the numbers from least to greatest, recalling that positive numbers are always larger than negative numbers.