Posted by **Kris** on Tuesday, August 2, 2011 at 7:42pm.

Global Telephone charges 30 dollars for monthly phone service, plus a long distance calling rate of 15 cents per minute. After an hour of long distance calling charges,the rate drops to just 5 cents per minute for additional long distance calls.

What will the monthly bill be if you make 150 minutes of long distance calls?

If the phone bill was 45 dollars, how many minutes of long distance calls did you make?

Let n denote the number of minutes of long distance service you use in a given month. Find a formula involving n that expresses your monthly telephone bill.

- Math -
**Ms. Sue**, Tuesday, August 2, 2011 at 7:48pm
Kris/Pam -- please use the same name on your posts.

- Math -
**Anonymous**, Saturday, February 21, 2015 at 3:53pm
. Louisa has $4,500 in her savings

account. She has to choose between two

savings plans. Under plan A, she will

increase her account balance by 10% per

year. Under plan B, her account balance

will increase by $525 per year.

If she plans to keep her money in savings

for 3 years, which plan should she

choose? How much more will she save

under that plan?

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