Hi Andy. This is a fun and surprisingly easy question once you see the trick.
Notice that if you multiply the height by the growth factor of the first day, that would be 3/2. The next day, you multiply by 4/3....
Now "n" is what interests us (because n2 is the number of days it takes to grow to 100 times its original size).
So look at that equation and do some cancelling!
Stephen La Rocque>
