if u could explain how to answer any of these that would be great
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14.
in rectangle abcd ab=10 bc=15
a point p inside the rectangle is such that pb=12 and pc=9
whant is the length of pa
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15
a garden hose is wound on a reel. the first 8 turns are each of length 21 inches, the next 8 turns are each of length 23 inches, the next 8 turns are wach of length 25 inches, and so on. find the total number of turn required to roll up a 200 foot garden hose
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16.
for a given arithmetic sequence , the sum of the first 50 terms is 200 and the sum of the next fifty terms is 2700. What is the first term in the sequence

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