Answer:
sorry I couldn't understand the language so I can't give u ans..
Hey!
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Rational Number - Any number that can be written as a fraction.
Prime Number - Is a number that it's only factor is 1 and itself.
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Solution and Answer:
15/17 ≈ 0.88
15/17 cannot be simplified because 17 is a prime number and both numbers don't have common prime factors.
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Hope This Helped! Good Luck!
Answer: 12
Step-by-step explanation:

Solution in attachment :
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6 trips because 1 trip = 3 km
If you divide 18 / 3 it would be 6 and by that multiply the # of trips.