math
posted by alicia .
Your great uncle gave you $2 on your first birthday, $4 on your 2nd birthday, $8 on your 3rd birthday, and so on.
(a) How much money will you receive on your 18th birthday?
(b) How much money will you receive on your nth birthday and explain how to use your equation to find how much money you will receive on any given birthday?

math 
MathMate
The answer to the question is in the powers of 2.
2^{1}=2
2^{2}=4
2^{3}=8
2^{4}=16
.....
2^{18}=?
.....
2^{n}=?
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