Thursday
December 18, 2014

Homework Help: Math

Posted by Richard on Thursday, April 8, 2010 at 11:52am.

Media service charges $20 for a phone and $30/month for its economy plan. The equation c=30t +20 describes the total cost,c, of operating Media Services phone for t months.

A) The total cost for 8 months of service is? My answer $260

If a customer has only $90 available, how many months of service can she receive? My answer is B
A. 2 1/2
B. 2 1/3
c. 3
d. 2

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