What is 5.242 rounded to the nearest hundredth?

5.242 rounded to the nearest hundredth... look at the previous number in the bold here: 5.242. Because this number is below 5... the number before it 5.242 must stay the same. If it was above five, the number would have been rounded up. 

So therefore the answer is: 5.242 --> 5.24

h(x)=-2^-x, yeah this is definitely right