A basic cell phone plan costs $50 per month and includes 200 minutes of call time. If the customer uses more than 200 mi

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A Basic Cell Phone Plan Costs 50 Per Month And Includes 200 Minutes Of Call Time If The Customer Uses More Than 200 Mi 1 (210.44 KiB) Viewed 36 times

Could you explain in detail why n-200 should be.
Thank you
A basic cell phone plan costs $50 per month and includes 200 minutes of call time. If the customer uses more than 200 minutes in a month, they are charged an additional $0.03 per minute used. If n represents the number of minutes used, which of the following represents the monthly cost (C) when more than 200 minutes are used? C = 50 + 0.03(n) INCORRECT This option is incorrect because $0.03 is multiplied by the total number of minutes used, rather than by the number of minutes used beyond 200. C = 50 + 0.03(n + 200) INCORRECT My Answer This option is incorrect because 200 is added to the number of minutes used, rather than subtracted. Because n represents the total number of minutes used, this equation would result in the customer paying $0.06 per minute ($0.03 per minute, twice) for the first 200 minutes and $0.03 per minute used beyond 200 minutes, in addition to the original $50. C = 50 + 0.03(n - 200) CORRECT