Someone me ! check if i'm correct

order the following decimals from smallest to larges.
5.345 5.4234 5.5433 5.5 4.5431 5.543

i got 4.5431, 5.4234, 5.5, 5.543, 5.5433 ,5.345

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.