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Mathematics 8 Online
OpenStudy (anonymous):

erinn's basic cell phone plan charge $54.99 for service plus $0.20 per minute beyond the included 500 minutes in the plan. how much will it cost erinn if she used her cell phone for 680 minutes in one month?

Parth (parthkohli):

\(\Large \color{purple}{\rightarrow 54.99 + 180(0.20) }\)

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