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Mathematics, 12.05.2020 15:57 icemaniac

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Brian can choose Plan A or Plan B for his long distance charges. For each plan, cost (in dollars) depends on minutes used (per month) as shown below.
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(a)If Brian makes 160 minutes of long distance calls for the month, which plan costs more?
Plan A Plan B
How much more does it cost than the other plan?

(b)For what number of long distance minutes do the two plans cost the same?

If the time spent on long distance calls is less than this amount, which plan costs less?
Plan A Plan B

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