Question 343927
a.Company A: Let h=20
t=500+80(20)=2100
Company B: Let h=20
t=750+70(20)=2150
Here Company A would charge less.

b.Company A: Let h=40
t=500+80(40)=3700
Company B: Let h=40
t=750+70(40)=3550
Here Company B would charge less.