A laptop computer is purchased for $4900. Each year, its value is 80% of its value the year before. After how many years will

Question

A laptop computer is purchased for $4900. Each year, its value is 80% of its value the year before. After how many years will the laptop computer be worth
$1000 or less? (Use the calculator provided if necessary.)
Write the smallest possible whole number answer.

Kunduz · Accepted Answer

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