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mary receives $100 for her birthday. her grandma told her she can only spend half of the money each day. if she obeys her grandma on what day would she have spent the last of the money

Respuesta :

She has 100 dollars
Half of 50 is
The pattern :

100, 50, 25, 12.5, 6.25, 3.12, 1.56, 0.78, 0.39, 0.19, 0.9, 0.45. 0.22, 0.11, 0.5, 0.25, 0.12, 0.06, 0.03, 0.01

This is basically as far as it goes I had to round some of the numbers. But since there are 20 terms the number of days is 20

20 days

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