To avoid drowsiness and complaints of state air, the amount of carbon dioxide (C*O_{1}) in a workplace must not be greater than 1,000 parts per million (ppm). How would you write an inequality to show the amount of (0O_{4}) in parts per mison that would cause drowsiness and complaints of stale air?
There is a typo in the question. Assuming that it is meant to say "How would you write an inequality to show the amount of (CO2) in parts per million that would cause drowsiness and complaints of stale air?"
The inequality would be:
CO2 > 1000 ppm