Choose the missing step in the given solution to the inequality −x − 3 < 13 + 3x. −x − 3 < 13 + 3x −4x < 16 x > −4 −4x − 3 > 13 2x − 3 < 18 −4x − 3 < 13 2x − 3 > 18

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.