nicole purchased a power boat for $15,000 and was told by the salesman that the yearly average cost to operate the boat was appointmately &900. in what year of the ownership will nicole’s average annual cost of owning the boat be $3900 ?

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  A

Step-by-step explanation:

The square root of any integer that is not a perfect square will be irrational.

  √5 is irrational

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Any decimal number that terminates or repeats is a rational number, regardless of sign. All of the decimal numbers shown are rational. (All terminate after a finite number of digits.)

Of course, any ratio of integers is a rational number. That's what the word "rational" means.