what industry has declined in iran because of pollution?

What causes the cyclical changes in the appearance of the moon?

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?

Can someone me? i need to have this done as soon as possible! i'm putting 20 points on this!