A rectangular-shaped carpet that measures x feet by y feet is priced at $25. What is the cost of the carpet, in dollars per square yard? (1 square yard = 9 square feet) Choices: A) 9/(25xy) B) xy/225 C) 225/(xy) D) 225xy E) 25xy/9
The area of the carpet in feet is xy.   The area in square yards is xy / 9.   The price per square yard is 25 / (xy/9) = 225/(xy).   The answer is 225/(xy).
<result>C</result>
A rectangular-shaped carpet that measures x feet by y feet is priced at $25. What is the cost of the carpet, in dollars per square yard? (1 square yard = 9 square feet)