Qs 14-2 fixed and variable costs lo c2 a cell phone company offers two different plans. plan a costs $80 per month for unlimited talk and text. plan b costs $0.20 per minute plus $0.10 per text message sent. you need to purchase a plan for your 14-year-old sister. your sister currently uses 1,700 minutes and sends 1,600 texts each month. (1) what is your sisters total cost under each of the two plans