Answer:
8 weeks
Explanation:
week 1=64
week2=32
week3=16
week4=8
week5=4
week6=2
week7=1
week8=.5=0
Answer: Not exactly 0 pieces a week, but it'll take them at least 6 weeks to get rid of their habit.
64/2=32/2=16/2=8/2=4/2=2/2=1
Just continually divide that number by 2 until it reaches 1.
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