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September 21, 2014

September 21, 2014

Posted by **Matt** on Monday, March 10, 2014 at 12:56am.

The monthly cost C, in dollars, for

international calls on a certain cellular phone plan is

modeled by the function where x is the

number of minutes used.

(a) What is the cost if you talk on the phone for x=43

minutes?

(b) Suppose that your monthly bill is $44.10. How many

minutes did you use the phone?

(c) Suppose that you budget yourself $80 per month for the

phone. What is the maximum number of minutes that

you can talk?

- math - incomplete -
**Steve**, Monday, March 10, 2014 at 4:56amno function given.

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