Final answer:
Without the initial temperature before the cold front, we cannot accurately determine the noon temperature in Fahrenheit degrees. The information provided, along with concepts of the Fahrenheit scale, can be helpful for understanding and comparisons, but an answer to the question cannot be given without additional context.
Step-by-step explanation:
To determine the temperature at noon described in the question, more context is required since the value is not provided directly. Generally, a temperature given in Fahrenheit degrees would assist in identifying the correct answer when presented with options such as 8°F, 12°F, 16°F, and 20°F. The Fahrenheit scale is a temperature scale in which the freezing point of water is 32°F and the boiling point is 212°F. Considering part (a) of the information provided, if the cold front drops the temperature by 40.0 Fahrenheit degrees, we would need to know the temperature before the drop to calculate the new temperature. Without this initial temperature, it is impossible to answer accurately. However, the passage mentions conserving energy by keeping room temperatures at 68.0°F during the winter, as an example.