The length of the rectangular sandbox at Daves school is 12 feet.
Given the area of rectangular sandbox =108 square feet
The width of the sandbox = 9 feet
Suppose the length of rectangular sandbox =l
What is the area of a rectangle?
The area of a rectangle with length l and width b is lb.
So, \(9l=108\)
\(l=\frac{108}{9}\)
\(l=12\)
So length =12 feet
Hence, the length of the rectangular sandbox at Daves school is 12 feet.
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