If 4 quarts of paint are needed for a 75-foot fence, how many quarts are needed for an825-foot fence?

Answer:44 quarts of paintStep-by-step explanation:Given,75-foot fence needs = 4 quarts.We have to use the unitary method to determine how many quarts will be needed for the fencing system. Hence,75-foot fence needs         = 4 quarts of paint1-feet fence needs            = (4/75) quarts of paint825-foot fence needs      = (4 x 825)/75 quarts of paint                                           = 3,300/75 quarts of paint                                           = 44 quarts of paintTherefore, we need 44 quarts of paint for 825-foot fence.