Which actions have a positive effect on air resources?

Every time you drive you will experience a combination of driving conditions and environments.

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

How can you find the mean absolute deviation (mad) for this set of data?