Find the cell phone plan that has the best dollar per minute rate.
A) 240 minutes for $50 a month
B) 140 minutes for $70 a month
C) 200 minutes for $45 a month
D) 800 minutes for $250 a month

Respuesta :

Plan a) 240/50=4.8
Plan b) 140/70=2
Plan c) 200/45=4.44
Plan d) 800/250=.32
Plan D is the most cost effective