Juana’s dad gave her an exponentially increasing allowance as an experiment. On the first day, he gave her 1¢. On the second day he doubled it and gave her 2¢, and on the third day, he doubled that and gave her 4¢. He kept doubling the previous day’s amount for a total of 10 days. How much did he give her on the tenth day?

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4 x 2.... 8
8 x 2.... 16
16x2.... 32
32x2... 64
64x2.... 128
128x2.... 156
156x2..... 312
$3.12

those arent a choice... choices are: A. 18¢ B. 20¢ C. $5.12 D. $10.24

$5.12

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