Free points :) for svoid

Which of the fallowing best completes the sequence 5,10,15, a) 30 b) 22 c)25 d)35

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

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30