twenty-three
3 x 7 = 21
21 + 2 = 23
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7 1/2 feet = 3 feet + 3 feet + 1 1/2 feet = 1 yard + 1 yard + 1/2 yard = 2 1/2 yards
23 feet
7 yd (3 feet/1 yard)= 21 feet + 2 feet= 23 feet=======
7 feet, a yard has three feet
One yard contains three feet. Hence 7 yards 2 feet equal 21+2=23 feet.