Marcos purchases a top-up card for his pre-paid cell phone. His remaining balance, B, can be modeled by the equation B= 30 – 0.2n, where n is the number of minutes he's talked since purchasing the card. a) How much moey was on the card when he purchased it? S Which intercept is this? Select an answer v b) How many minutes will he have talked when he runs out of money? minutes. Which intercept is this? Select an answer v c) What is the slope of this equation? What are the units on the slope? Select an answer Ouer

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