The daytime temperature in Apple Valley is falling by 2.5 degrees each day. What will the net change in the daily temperature be after one calendar week? A. - 2.5 degrees B. 2.5 degrees C. - 4.5 degrees D. - 17.5 degrees E. 17.5 degrees

Option D - 17.5 degrees is correct answer

Step-by-step explanation:

Since a calendar week has 7 days. and temperature is falling by - 2.5 daily.

So, On Day 1 Temperature is - 2.5 degrees

On Day 2 Temperature is - 2.5 + - 2.5 = - 5 degrees

On Day 3 Temperature is = - 5 + - 2.5 = - 7.5 degrees

On Day 4 Temperature is = - 7.5 + - 2.5 = - 10 degrees

On Day 5 Temperature is = - 10 + - 2.5 = - 12.5 degrees

On Day 6 Temperature is = - 12.5 + - 2.5 = - 15 degrees

On Day 7 Temperature is = - 15 + - 2.5 = - 17.5 degrees

So, Option D - 17.5 degrees is correct answer.