A rectangular-shaped carpet that measures x feet by y feet is priced at $8. What is the cost of the carpet, in dollars per square yard? (1 square yard = 9 square feet)
Choose the correct choice from the following answers:
A) 72/(xy)
B) 90xy
C) xy/90
D) xy/10
E) 10/(xy)
The area of the carpet in feet is xy.   The area in square yards is xy / 9.   The price per square yard is 8 / (xy/9) = 72/(xy).   The answer is 72/(xy).
<result>A</result>
A rectangular-shaped carpet that measures x feet by y feet is priced at $8. What is the cost of the carpet, in dollars per square yard? (1 square yard = 9 square feet)