Hanna is a rational economic agent of UW. She always enjoys going to the Husky hub to take lunch and eating sushi and chicken. She now learned how to draw an indifference curve and utility function, and she wants to know what is her optimal demand for those two lunch menus. She is now considering her utility curve is a sum of two concave functions. So, she guesses that her utility curve is U(X,Y) = ln + ^0.5. Do you think would she be able to get the optimal demand for the lunch menus with that utility function?