#### Answer

$-2, -\frac{7}{4}, \frac{1}{2},\sqrt 5, 2.4$

#### Work Step by Step

Turning all of the terms into decimals makes them easier to compare and arrange in ascending order.
-2 as a decimal= -2.0
$-\frac{7}{4}$ as a decimal= -1.75
$\frac{1}{2}$ as a decimal= 0.5
$\sqrt 5$ as a decimal= 2.236
2.4 as a decimal= 2.4
$-2.0\lt-1.75\lt0.5\lt2.236\lt2.4$
After being arranged in ascending order, the correct answer is: $-2, -\frac{7}{4}, \frac{1}{2},\sqrt 5, 2.4$