Answer:
m = 0.25
Step-by-step explanation:
-0.8 = -3.2m
m = 0.25
Using a calculator, you can find out that

and so that means

so your answer is
<span>If the clock is held at a
constant 0.0ºc over a period of 24 hours, the clock will be exactly the same as
the perfect clock because it is at a
constant 0.0</span> <span>ºc for 24. Meaning there is
no deviation on its reading</span>