Hi there.
Since she reads 15 pages in 2 hours, all we have to do to find out how much she reads in 1 hour is divide.
15/2 = 7.5
7.5 pages/hour
Same applies to the pay
40/2 = 20
$20/hour
Karyn proofreading rate is 7.5 pages per hour. Karyn receives on average $20 per hour.
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Answer:
that means all the other sides are x-45 and each of the angles are 60 degrees
(i dont know what your asking for)
She would need to but 48 videos to get the cash prize. Hope this helps :)

hope this is what you are looking for