Question

karen is trying to choose a cell phone plan. company j charges a subscruptio fee of $30 per month plus $1 per hour of use. company k charges no monthly fee but charges $2 for every hour of use.

Answer 1

30+h = 2h

h = 30 hours

For 30 hours, she can choose either

For < 30 hours, company k

For > 30 hours, company j