If you have trouble with a particular type of exercise, review the examples in the section...

If you have trouble with a particular type of exercise, review the examples in the section indicated for that group of exercise. Answer to exercise are located in the answer key.

Environmental Protection Use the following bar graph to answer exercise.

If the exact same increase in the number of tons recovered occurs from 2010 to 2020 as occurred from 2000 to 2010, how many tons of solid waste will be recovered and recycled in 2020?