Question

Corrine has a $30 cell phone plan that includes 200 minutes for phone calls and unlimited texting . An additional fee is charged for using than 200 minutes for phone calls . When Corrine uses 300 minutes her monthly rate increases to $80

Answer 1

Corrine pays 1$ for every 2 minutes she has a phone call (after she has used up the 200 minutes of the 30$ cell phone plan)