A group of concert tickets cost $88 for 4 people and $180 for 10 people. What is the rate of change per person?
from 22/person to 18/person
88/4=$22 cost per person for 4 people
180/10=$18 cost person for 10 people
1 - (18/22) =.1818 x 100 =18.18% discount per person for 10 people.
