Safari adventure theme park is a self­guided theme park in which people drive through a park filled with african wildlife. they are given a map and a written guide to the wildlife of the park. they charge $20.00 per car plus $2.00 per person in the car. the number of people per car can be represented by the random variable x which has a mean value μx = 3.2, and a variance σ2x = 1.4. what is the mean of the total amount of money per car that is collected entering the park?