Final answer:
The total change in high temperature from Monday to Friday is calculated by summing the individual temperature changes, resulting in a total drop of -5°F. The correct answer is option B. -5°F.
Step-by-step explanation:
The question involves calculating the total change in daily high temperature from Monday to Friday. To find the total change, we sum the individual daily changes: a drop of 7°F between Monday and Tuesday, a rise of 9°F on Wednesday, a drop of 2°F on Thursday, and another drop of 5°F on Friday. The calculation is as follows: (-7) + 9 + (-2) + (-5) = -5°F.
Therefore, the total change in the high temperature from Monday to Friday is -5°F. Since there are two options with the same numerical value but potentially different signs, it is important to note that the correct answer reflects a decrease in temperature, meaning it should be a negative value. The correct answer is therefore option B. -5°F, acknowledging the temperature drop over the course of the week.