78 inches if you you know that a foot is 12 inches you can add 12 for every inch then add 6 for the half making it 78 inches. 
        
             
        
        
        
I am happy to help... but <span>Please be more specific with your question.
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The scenario can be described using a piecewise function like:
f(x) = 1/x                  if  x < c.
f(x) = x                    if   x = c
f(x) = 1/(x + 73)       if x > c.
<h3>
When the value exists but the limit does not?</h3>
Remember that the limit only exists if the limit from left and the limit from the right give the same value.
Then, we can just define a piecewise function of the form:
f(x) = 1/x                  if  x < c.
f(x) = x                    if   x = c
f(x) = 1/(x + 73)       if x > c.
Clearly, this is not a continuous function.
Notice that:

So the limits from left and right are different, then:

Does not exist.
If you want to learn more about limits:
brainly.com/question/5313449
#SPJ1