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Mathematics 7 Online
OpenStudy (anonymous):

A laptop computer is purchased for $2200. Each year, its value is 75% of its value the year before. After how many years will the laptop computer be worth $400 or less?

OpenStudy (anonymous):

please help

OpenStudy (anonymous):

In 6 years

OpenStudy (anonymous):

A loan of $27000 is made at 3.75% interest, compounded annually. After how many years will the amount due reach $43,000 or more?

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