Arectangular field measures 240 ft by 100 ft. part of the lawn is torn up to install a walk of uniform width around it. the area of the new field is one-half the area of the old. how wide is the walk?

The accompanying data represent the miles per gallon of a random sample of cars with a three-cylinder, 1.0 liter engine. (a) compute the z-score corresponding to the individual who obtained 42.342.3 miles per gallon. interpret this result.