SOLUTION: Karen spent all but $8.00 of her savings in three stores. In each store she spent $2.00 less than half of what she had when she went in. How much money did Karen have at the star

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Question 42985: Karen spent all but $8.00 of her savings in three stores. In each store she spent $2.00 less than half of what she had when she went in. How much money did Karen have at the start.
I just don't know where to start

Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
Spent: %280.5s+-+2%29 where s is her amount of money
amount after first store: s+-+%280.5s+-+2%29+=+a
amount after second store: a+-+%28.5a+-+2%29+=+f
amount after third store: f+-+%28.5f+-+2%29+=+8
[f o f o f](s) = 8