Science Bowl Question

📅 NSB MS 2007🎓 MS🔄 Round 6#️⃣ Question 9🌟 BONUS✍️ Short Answer

A cell phone company charges 25 cents per minute for the first 10 minutes of usage and 10 cents per minute for usage greater than 10 minutes. If you talked for 1.5 hours, what is your total airtime charge?

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