Find 3.96/0.7 to the nearest tenth

It is 5.65 , so round up to 5.7 and that's the nearest tenth

3.96 / 0.7 = 5.65 followed by loads of other numbers ( working out on paper )
Lets just say it's 5.65 for now because that's all we need to answer the question.
The H T U thing we will need is U . t h we must look at the h which is hundredths.
You can round 5 up so the answer is 5.7 !

3.64 deaths an hour.

The answer to your question is b