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Which of the following are parts of a sphere

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241. a) 0 b) 1 c) 2 d) 1 2

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?