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March 28, 2015

Homework Help: algebra

Posted by at on Sunday, January 24, 2010 at 12:27pm.

help please im on my final exam for algebra and i need to pass this is the second time taking it.

media services charges $20 for a phone and $30 a month for itd economy plan. the equation c=30t+20 describes the total cost c, of operating a media service phone for t months.

the total cost for two months service?
if a customer has only $90 available how many months of service can she recive?

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