X = 1 is the correct answer.
Using the log properties, remember that Log(base2)2 = 1
3log(base2)2x = 3
divide both sides by 3
log(base 2)2x = 1
log(base2)2 = 1
1 * x = 1
x = 1
14^2 is the same as saying 14x14
=196
If it was one year it would be 2200 and you just keep adding 200 for each year.
Where is the question. though
