0.8inch = 2.032
1.4inch = 3.556
2.1inch = 5.334
Sorry if its wrong had to do it fast!!!
Answer:
52.708
Explanation:
It's 708 instead of 78 even rounded 52.708 would be more.
Consider, pls, this option:
1. formula for conversion:

2. according to the formula:
C=(-31-32)*5/9=(-7)*5=-35°
Answer: -35°C.
Sorry I don't know but i bet more can exolain.