When the apocalypse began, there were 10 zombies. Each day that number doubled. How many zombies would there be after a two weeks (14 days)?
a) 140
b) 270
c) 14,336
d) 163,840
c) 14,336
On the first day, there were 10 zombies.
On the second day, there were 20 zombies.
On the third day, there were 40 zombies.
This doubling pattern continued for 14 days.
10 zombies * 2^14 = 10 * 16,384 = 14,336 zombies.