# A rocket rises 30 feet after 1 second, 85 feet after 2 seconds, and 140 feet after 3 seconds. If it continues to rise at this rate, how many feet will it rise after 16 seconds?

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by lalala7

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by lalala7

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tn= t1+55(n-1) t1=30

t16 = 30 + 55(16-1)

t16 = 30 + 55(15)

t16 = 30 + 825

t16 = 855