Evaluate the Expression when x = 6 and y = 5.
(x - 1) + (y - 1)

How far could you drive on 50 gallons of gas

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

The ages of personnel in the accounting department of a large company are normally distributed with a standard deviation of 7 years. there is a 0.02275 probability that the age of any randomly chosen person in the department is less than 22 and 0.15866 probabilty that the age of any randomly chosen person is greater than 43. what is the mean of this distribution?