<span>Good Morning!
A natural resource that is extracted from the ground by its valuable mineral content, is called "ore." We have, for example, gold ore, lead ore and galena ore. These materials gain the "ore" next to the name, precisely because it has the economic potential in its extraction.
Letter C).</span>
C) Is the correct answer I believe, unless you want to flush the chemicals down the sink and then have a reaction with them the next time you go swimming in a lake and find them there.
The answers are shown below: In part A: coefficient = 20 variable = c constant = 35 & 23.50 In part B: savings = 20 (3) +23.5+ 35+35+35 +35 +35 +35+35+35+35+35+35+35 savings = $ 503.5 In part C: the new expression will be: 25c + 35 + 23.5
