<h3>Answer: 10</h3>
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Explanation:
We'll start off converting each mixed number into an improper fraction.
The formula to use is 
So,

And,

So the task of computing  is exactly the same as computing
 is exactly the same as computing 
Notice how we have an 8 up top and an 8 down below. Those 8's cancel out and we're left with  . That fraction does not reduce any further.
. That fraction does not reduce any further.
The last step is to convert that improper fraction result to a mixed number.

Or you could note that 17/3 leads to 5 remainder 2. The 5 is the whole part and the 2 forms the numerator of the fractional part 2/3.
The value is in  form where
 form where
Therefore, A+b+c = 5+2+3 = 10
 
        
        
        
The answer is the 3rd choice. The beginning temperature is -9 so you add the 7 to the -9 degrees to find the temperature at noon because it increased.