A sports club needs to raise at least $500 by selling chocolate bars for $2. 50 each. Sebastian wants to know how many chocolate bars, c, the sports club must sell in order to reach its goal. Which of the following must be true about the inequality and the resulting graph? select three options. The inequality should be written as 2. 50 c greater-than-or-equal-to 500. The inequality should be written as 2. 50 c less-than-or-equal-to 500. The circle is open. The circle is closed. The arrow points right

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