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Research an advertised, single-line phone plan that does not include unlimited minutes and provide the details of the advertisement. (i.e. $50/month for the first 200 minutes used, $0.10 per additional minute) Create your own similar plan with different values. Be sure to not use the exact same values used in a previous post. Based on your plan, write an equation that can be used to determine the monthly cost [C(t) of the plan when t minutes are used], and use that equation to calculate the total cost when 300, 1.000, and 2,000 minutes are used. In your responses to peers, compare the total costs you calculated in part (b) with those of at least two peers. Discuss the differences you notice and how they could have been foreseen by just comparing the formulas.