Question

Let Us Cell U charges $0.15/minute for long distance calls. Cell for Less charges $10.50/hour plus an additional $0.10/minute for partial hour if you average 5 hours and 15 minutes of long distance calls each month,which company will save you money?

Answer 1

Let Us Call better

translate 5 hours and 15 min into all min to find the total for us cell u. 5*60=300, so 315 minutes. So then multiply .15 by 315 and you get 47.25$. 

Now do Call for us. so first multiply 5 by 10.50. you get 52.50$.