A cell phone plan costs \20permonthplusper month pluspermonthplus$0.05perminuteused.Whatisthetotalcostfunctionper minute used. What is the total cost functionperminuteused.WhatisthetotalcostfunctionC(m)forforform$ minutes?
C(m)=20+0.05mC(m) = 20 + 0.05mC(m)=20+0.05m
C(m)=20.05+mC(m) = 20.05 + mC(m)=20.05+m
C(m)=0.05(m+20)C(m) = 0.05(m + 20)C(m)=0.05(m+20)
C(m)=20m+0.05C(m) = 20m + 0.05C(m)=20m+0.05