Need Math help exponents/logarithms word problem

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Homework Statement


A gallon of milk will last 192 hours at 0 degrees celsius, 42 hours at 22 degrees celsius, how long will it last at 30 degrees celsius?


Homework Equations





The Attempt at a Solution

 
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Log (H) = 192 - Log (T)^x

Fits for the first data set, but doesn't fit the problem?

I'm confused and stuck?
 
You have not given us the entire problem description. Apparently you are supposed to fit this data to some kind of function. Since you are given two points-- (0, 192) and (22, 42), one possibility is to fit this data to a linear equation.

If you are supposed to do this some other way, please specify what that way is.