The telephone company offers two types of service. With Plan A, you can make an unlimited number of local calls per month for $18.50. With Plan B, you pay $6.50 monthly, plus 10 cents
for each min. of calls after the first 40 min. At least how many min would you have to use the
telephone each month to make Plan A the better option?
Show ALL Work Give a brief paragraph on how you arrived at the equations you used