Hurry and answer ! the selling price of an item is $495. after 6 months of not selling, it is marked down by 20%. after another 6 months of not selling, it is further marked down by 10%. find the sale price after both markdowns.

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.