The sequence is to take the previous number and multiply by 4, so the sequence is
3 12 48 192 768 3072 12288
add them all up and you get 16383
Answer:
a member would have to take 14 lessons versus a non-member which would only have to take 7
(0,0) is the vortex for this problem
No it is not possible to play 12 games and go on 6 rides