Why should you understand what you can and cannot copyright?

Which analyst position analyzes information using mathematical models to business managers make decisions? -budget analyst -management analyst -credit analyst -operations research analyst

When cell phones were first entering the market, they were relatively large and reception was undependable. all cell phones were essentially the same. but as the technology developed, many competitors entered, introducing features unique to their phones. today, cell phones are only a small fraction of the size and weight of their predecessors. consumers can buy cell phones with color screens, cameras, internet access, daily planners, or voice activation (and any combination of these features). the history of the cell phone demonstrates what marketing trend?

The answer here, x=7, is not in the interval that you selected in the previous part. what is wrong with the work shown above?