Suppose that the CPI was 105 on Jan 1, 2008 and 117 on Jan 1, 2011. What was the average annual inflation over the intervening period?
A)4.00%
B)3.97%
C)3.87%
D)3.77%
E)3.67%

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The Answer of Suppose that the CPI was 105 on Jan 1, 2008 and 117 on Jan 1, 2011. What was the average annual inflation over the intervening period?
A)4.00%
B)3.97%
C)3.87%
D)3.77%
E)3.67%

Suppose That the CPI Was 105 on Jan 1, 2008