Answer:
The approximate cost of a 15-ft-by-18-ft rectangular rug is $729.
Step-by-step explanation:
It costs a family $324 to buy a 10-ft-by-12-ft rectangular rug.
Means for \(10\times12=120\) square feet, the cost of rug is $324
So, for 15-ft-by-18-ft or @@MATH_TOKEN_1@@ square feet of rug, the cost will be =
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Therefore, the approximate cost of a 15-ft-by-18-ft rectangular rug is $729.