Recovery of Solid Waste The percent W of municipal solid waste recovered is shown in the bar graph. The linear model
W = 0.68x + 30.6,
where x = 1 represents 2004, x = 2 represents 2005, and so on, fits the data reasonably well.
(a) Based on this model, when did the percent of waste recovered first exceed 32%?
(b) In what years was it between 33% and 34%?
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