Mallory guessed the weight of her dog as 60 pounds. The dog's actual wight is 72 pounds. Which proportion correctly shows how percent error should be calculated for Mallory's guess?

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet