SOLUTION: Corey collected 4 pounds of newspaper on day 1. Each day after day 1, he collected 4 times the amount he had collected the previous day. On which day did he first collect over 1000

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Question 726716: Corey collected 4 pounds of newspaper on day 1. Each day after day 1, he collected 4 times the amount he had collected the previous day. On which day did he first collect over 1000 pounds of newspaper?
Answer by richwmiller(17219) About Me  (Show Source):
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1 4
2 16
3 64
4 256
5 1028