Hello there! An example problem for this could be:
Emile is looking for a cell-phone plan. His two options are one that costs $40 up front, and costs $0.01 per text, represented by x. The second one is 15 dollars up front and costs $0.06 for each text message. Emile figures that for the first package he has to send 500 texts or more to make it less than the second one.
Answer:
I think is C like I said not quite sure...
Answer:
The highest would be the letter B and the lowest would be letter C if the pat is what you need to know.
Hope it helps :)
18 units of whatever the measure is