Answer:D
Step-by-step explanation:
Answer:
We conclude that eighty percent of bike tires last at most 14.4 months.
Step-by-step explanation:
We know that a pair of bike tires can last 18 months if used every day.
We calculate how much eighty percent of the tire will last in months.
We have the following proportion:

We conclude that eighty percent of bike tires last at most 14.4 months.
26 = 3x - 2 - 7x
26 + 2 = -4x
28 / -4 = x
x = -7
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