X 7.7.15 Find the balance in the account after the given period.
$7000 principal earning 7% compounded annually, 4 years
The balance after 4 years will be $
(Round to the nearest cent as needed.)

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.