Answer:
y=9x
Step-by-step explanation:
If a gas station is charging $9 for one wash, then what do you think the price will be if there were two washes? It would be $18, and it goes on and on.
Chart
l x l 9x l y l
l 1 l 9(1) l 9 l
l 2 l9(2) l 18 l
l 3 l 9(3)l 27 l
l 4 l 9(4)l 36 l