Tara's cell phone costa $45 permonth for unlimited calss and $0.05 per text message. Tara's parents tell her that her bill cannot be more than $65 per month.
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Part A. Write and solve an inequality to find out the maximum number of text messages Tara can use per month. Let t represent the number of texts.
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Part B. Tara found another cell phone plan that costs $55 per month that has an unlimited number of texts, but it costs $0.15 per call. Write and solve an inequality to find how many calls could Tara make per month and still make her parents $65 limit. Let c represent the number of calls.
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Part C. Explain the meaning of your answer to part B.