Mathematics, 28.09.2020 15:01, pr47723

A cell phone company charges a flat rate of $3.99 per month, with an additional charge of $0.05 per minute. How many minutes did Casey talk on her cell phone if her monthly bill was $38.44?

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A cell phone company charges a flat rate of $3.99 per month, with an additional charge of $0.05 per...