HiSET) On a road map, the distance between two cities is 5.1 inches. If 1.8 inches on the map represents 40 miles of actual distance, which of the following expressions gives the best estimate of the actual distance in miles between these cities?
a) 5/2 x 40 b) 5/2 ÷ 40 c) 6/40 x 2 d) 5/1 x 40 e) 5/40 x 2