GRE

简答题 What was the total change in health spendingfrom 1990 t0 2010,as a percentage(rounded to thenearest tenth)?

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E.
To increase by 5%isthe same as to multiply by 1.05.Increasing by 5%,then 8%,then 7%,and then 9%is the same asmultiplying by(1.05)× (1.08)×(1.07)×(1.09)≈.32258.This is the same as increasing by 32.258%, which is 3 2.3%when rounded to the nearesttenth of a percent.