11.8. Reconsider Example 11.5 (Blackjack Airline). After initial success with the Los Angeles-to-Las Vegas route, Blackjack Airline's demand for full-fare tickets has increased to an average of 75, with the standard deviation remaining at 15. Consequently, Blackjack has decided to raise all ticket prices by $10. Under these new conditions, how many full-fare seats should Blackjack reserve