Me find the starting time. (on 1 question)

1) end time = 10: 39 pm
elapsed time = 8 hours 45 minutes
(what is the starting time? )

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Subtraction !! Super Simple! 

Questions To Ask Yourself? 
- How long is an hour
- How long is two? 
- How long is  

Now we'll try to do the math in our head? or on paper... either's fine! :D

60 × ... 

Try that math! I won't help with the answer, but I sure will help with the solving. :D

What i'll say is that subtract 10-8 = 2pm. That's the time... but you still have those minutes. 1:52 was the start time. :D

A.
20.0cm

 any rounding numbers will come to the closest tenths!