Answer:
16.8°C
Step-by-step explanation:
Given :The daily high temperature of Elk Creek drops by 1.2°C every day.
To Find:What is the net change in the daily high temperature after two calendar weeks?
Solution:
Since we are given that The daily high temperature of Elk Creek drops by 1.2°C every day.
1 week = 7 days.
So, 2 weeks =
days
Temperature drops per day = 1.2°C
So, temperature drops in 14 days = 
Hence the net change in the daily high temperature after two calendar weeks is 16.8°C.