Madeline has two different candles made by two different companies. The length in centimeters of the first candle depends on its burning time t (in hours) according to the formula f(t)= 20-1.5t. The length (in centimeters) of the second candle over time

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Answer:

I needed help with this answer well, because im on it right now.

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I'm in algebra and I don't understand how to solve this equation or problem :(