width of the rectangular lot is 45 1/2 feet and length is 90 2/3 feet what is the amount need to build a fence

To find the amount needed to build the fence you would first need to find the perimeter of the rectangle. Which the formula is P=2 (l+w).

Then you plug in your numbers into the formula and you'll get P=2 (90.66+45.5)

Then you can do the math or type it into a calculator and you'll get 272.32 ... Then just leave the numbers after the decimal out and 272 should be your estimated answer