The answer is C.
Explanation:
You start with a temperature of 4 degrees. You then need to times -0.8 x 6 to see how the temperature changed over time. This equals -4.8. You have to then do 4 -4.8 which equals = -0.8.
The equation you do next is 0.3 x 2 because you times the temperature (0.3) by how many hours (2)
This then equals = 0.6
You then get your answer from the 2 equations, -0.8 + 0.6, which equals -0.2. And that’s your final answer
Hope this helps :)
