if the bar graph were absent, and I only had the model to work with, here are the setups that I would use:

The trick to this problem is interpreting the results. the domain of this model is {0,1,2,3,4,5}, but the solutions to the inequalities are unlikely to be one of these six integers. Solving the first inequality you find that . To answer the question choose the domain element(s) that satisfies this inequality. Since , we say that the waste recovered first exceeded 26% in 1996.

p.s. the word "quadratic" implies that were dealing with terms. What you have here is a linear inequality.