Answer:
I assume your goal is to rationalize the denominator -
So you need to multiply the denominator by its conjugate.
So we have:

->

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Answer:
13+21
Step-by-step explanation:
Remember this, two negatives equals a positive.
As a result, the answer is 13+21
Answer: 2 + (0.75m) = 4.25
Step-by-step explanation:
0.75m represents 0.75 * mile. So, you need to also add the flat fee.