A rental car company offers two rental plans, Plan A and Plan B, for the same economy size car. For both plans, the total rental cost, ƒ(m ) is a function of the number of miles, m, that the car is driven. Plan A: ƒ(m ) = 0.12m + 75 Plan B: ƒ(m ) = 0.35m I. In complete sentences, translate each function into a verbal model describing the total cost of the rental in terms of the number of miles that the car is driven. II. For each function, determine how the rate of change will affect the total cost of a car rental. III. For a car rental that will include a maximum of 250 miles for the duration of the rental, which plan is the most cost effective.

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average