In 201320132013 the median monthly rent for a one-bedroom apartment in San Francisco was \$2{,}750$2,750dollar sign, 2, comma, 750. The equation below models the median monthly cost, CCC, in dollars, for a one-bedroom apartment over the next ttt years ((left parenthesisassuming 201320132013 to be t = 0)t=0)t, equals, 0, right parenthesis. \quad C = 250t + 2{,}750

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