During a certain 25-year period, the consumer price index (CPI) increased by 99%, but during the next 25-year period, it increased by only 1%. Which of these conditions must have existed during the second 25-year period?

c is the answer

step-by-step explanation:

21/58.

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1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0

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