You would like put up a fence around your rectangular backyard. You know that the length of your backyard is 64 feet and its area is 1984 square feet. Fencing costs $11 per foot.

Answer 1

So you need the width and the cost of fencing the back yard per your comment

Since the Area of a Rectangle = Length x Width

You have

1984 = 64 x Width

So

1984ft²/64ft = Width

31 ft = Width

Fencing should cover the Perimeter of the Rectangle = 2 Length + 2 Width

Your Perimeter is

2(64) + 2(31) = 128 + 62 = 190 ft

Since your cost is $11 per foot

190 ft x $11/ft = $2090 to fence the backyard

I hope you find this useful please email me if you have any questions