When an earthquake occurs energy radiates in all directions from its source which is called the?

The most common economic system in the world is aclosed economy.command economy.mixed market economy.traditional economy.

What statistics are to determine the development of a nation?

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?