Which of the following would be useful to show the percentage a total growth in plants exposed to various pollutants?

line graph

bar graph

frequency table

circle graph

What is created when solids,liquids,an gases mix with one another

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?

The slope of a velocity time graph over any interval of time gives the during that interval