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A ringtone company charges $10 a month for the service, plus $1.50 for each ringtone downloaded. What is the graph of the equations that models the total fees? Use a table if needed.
A 12-inch candle burns down at a rate of 2 inches per hour. What is the graph that models the height of the candle over time? Use a table if needed.
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An investment of $900 earns 3% interest, which is compounded semi-annually. Which graph models the worth of the investment over time? Use a table to solve.
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