3.) On a typical long distance call you talk for 30 minutes. On a typical local call you talk for 10 minutes. Your phone company offers a special low rate of $0.08 per minute for long distance calls and $0.03 per
minute for local calls, for customers who spend at least 240 minutes on the phone per month. Your
parents have set a limit of no more than 15 long distance calls per month and 30 local calls per month.
How many minutes of long distance and local calls should you make to qualify for the special rate plan
and minimize your phone bill?