Why do scientists think rifting occurs?

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?

Solve for r in the formula v = ir, when i = 5 and v = 15.

The ethnic conflicts in darfur have led to an attempt to destroy a whole people known as