To put the given numbers in order from least to greatest, let's first identify and compare their values:
- \( 5.38516480 \) (approximately \( \sqrt{29} \))
- \( -3.31662479 \) (approximately \( -\sqrt{11} \))
- \( 7.5 \) (which is \( \frac{45}{6} \))
- \( 6.8 \) (which is \( 6 \frac{4}{5} \))
Now, we'll list these values:
- \( -3.31662479 \)
- \( 5.38516480 \)
- \( 6.8 \)
- \( 7.5 \)
Ordering them from least to greatest, we have:
- \( -3.31662479 \)
- \( 5.38516480 \)
- \( 6.8 \)
- \( 7.5 \)
So, the final order from least to greatest is:
-3.31662479, 5.38516480, 6.8, 7.5