A rectangular-shaped carpet that measures x feet by y feet is priced at $24. What is the cost of the carpet, in dollars per square yard? (1 square yard = 9 square feet)
Choose the correct choice
A) 180xy  B) 216/(xy)  C) 20xy  D) 20xy/9  E) xy/180
The area of the carpet in feet is xy.   The area in square yards is xy / 9.   The price per square yard is 24 / (xy/9) = 216/(xy).   The answer is 216/(xy).
<result>B</result>
A rectangular-shaped carpet that measures x feet by y feet is priced at $24. What is the cost of the carpet, in dollars per square yard? (1 square yard = 9 square feet)