Question 20 • Algebra I
As the exponent decreases by 1, each value is divided by 5: 125 ÷ 5 = 25, 25 ÷ 5 = 5, and 5 ÷ 5 = 1. The pattern continues with 1 ÷ 5 = 1/5 and 1/5 ÷ 5 = 1/25. So the rule is to divide the previous value by 5, choice B.
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