Question 3 • 26-27 Ignite Technical Math-Financial Math - MA2007
Buying 1 point costs $1,000 and saves $958 − $948.75 = $9.25 each month. The break-even time is $1,000 ÷ $9.25 ≈ 108.1 months, or 108.1 ÷ 12 ≈ 9.0 years. So the best answer is 9 years.
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