Mark must pay a $250 non-refundable pet deposit for his apartment. If rent is $850 per month, then write a expression that would model his rent over time. (Explain how this relates to the
arithmetic sequences we have been studying.

The smokey mountains have over 2,100 miles of rushing mountain streams and rivers that flow through the park. in each mile lives a diverse community of native fish, amphibians, insects, and larvae, some of which are found only in the southern appalachians. park managers and scientific researchers test many factors such as fish populations, the watersheds and water tests to determine a) too many lizards are present b) the water quality of the stream c) rainwater is running into local streams d) if visitors to the park are overstaying their welcome