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The cost for a phone call is $0.75 for the first minute and $0.50 per minute after the first minute. If a phone call lasted x minutes, what was the cost of the phone call in terms of x?

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The cost for a phone call is $0.75 for the first minute and $0.50 per minute after the first minute. If a phone call lasted <em>x</em> minutes, what was the cost of the phone call in terms of <em>x</em>?






 
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