Final answer:
To convert 12.9 feet into yards, divide the length by the conversion factor of 3. The answer is 4.3 yards.
Step-by-step explanation:
To convert 12.9 feet into yards, you need to divide the length by the conversion factor of 3. Since 1 yard is equal to 3 feet, you divide 12.9 by 3. This gives you the answer 4.3 yards.
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