Posted by at on .
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?

algebra 
Ms. Sue,
Total cost for 2 months is 20 + 30 + 30.

algebra 
at,
so it would be $80 for two months then?

algebra 
Ms. Sue,
Right.

algebra 
at,
thank you that means she will be only able to get two months with her $90 then?

algebra 
at,
or maybe two and a half months with her $90>?

algebra 
Ms. Sue,
Services don't sell parts of months. Yes her $90 buys her the phone and two months service. She'll have $10 left over.

algebra 
at,
thank you

algebra 
Ms. Sue,
You're welcome.