A teacher labels two points on the number line. A. What are some methods for finding the distance between
points A and B?

I think this is right.

Explanation:

You could count from point A to point B the total distance. You could use a reference point inbetween the two points and count to A and B, and then add those numbers together. I hope this helps :).

the answer is option b.

explanation:

eutrophication happens when abundance supplements are available in oceanic biological systems, bringing about the expanded generation of vegetation and the resulting diminish in the oxygen levels of the water   eutrophication happens when there are abundance supplements in a waterway. this outcomes in plants having more sustenance and reproducing  more, here and there prompting more amphibian creature life also. eventually, this can decrease the oxygen level in the biological community.