Margaret wants to call her friend overseas. There is a connection fee of $3 and a charge of $1.40 per minute. So the cost of the
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Answer:
Step-by-step explanation:
If , then
. It follows that
Technically we are done, but some more simplification can be made. We can get a common denominator between 1/(x+h) and 1/x.
Now we can cancel the h in the numerator and denominator under the assumption that h is not 0.