How do maps people understand florida's geography?

How do oceanographers measure the salinity of ocean water?

Alaina wants to decide whether her current cell phone plan is better than a package that another company offers. to compare the two plans, she plotted two lines on a graph, where y represented the total cost of one month’s service and x represented the megabytes of data that she used in a month. which part of the graph will represent the cost per megabyte of data used in each plan?

Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)