9.2 Two concert tickets and 2 parking tickets cost $300.00. 2 concert tickets cost $120.00. All concert tickets cost the same and all parking tickets cost the same. What is the ratio of the cost of a parking ticket to the cost of a concert ticket?

it would be 6xy and -16xy.

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)