The first plan charges a rate of 19 cents per minute The second plan charges a monthly fee of $29.95 plus 8 cents per minute. minutes would you have to use in a month for the second plan be preferable

Answer 1

19M = 2995 + 8M

11M = 2995

M = 2995/11 = 272 minutes when both plans cost the same or 272/60 = about 4 1/2 hours

If you use less than about 4 1/2 hours go with the 19 cent per minute plan

If you use more than about 4/12 hours go with the 8 cent plan plus $29.95