Problem 2.1
I monitor the amount of battery left on my computer so I can make sure it doesn't die at the wrong time.

My battery loses charge at a constant rate.

This graph shows the percent of charge left on my computer, c, after I have been awake for h hours.

What was the percent charge when I woke up?
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Problem 2.2

This graph shows the amount of charge left on my computer, c, after I have been awake for h hours.

Enter an equation that describes the relationship between c and h.