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December 20, 2014

December 20, 2014

Posted by **Anonymous** on Tuesday, July 17, 2012 at 7:05pm.

there were 130 lights. Now (n = 4) there are 146 lights. If this trend continues,

a. Find an explicit formula for the number of lights in month n

b. How many months will it take to reach 200 lights?

- math -
**Steve**, Wednesday, July 18, 2012 at 12:24amz = 130+4n

z=200 when n=17.5

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