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

Math  Fresh, Thursday, April 8, 2010 at 11:58am
Correct :)

Math  Reiny, Thursday, April 8, 2010 at 11:58am
correct on both counts

Math  Richard, Thursday, April 8, 2010 at 12:00pm
thank you
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