Retaliation at wok

Consider that Dunix is a small company with 15 employees and $200,000 in annual profits.  Dunix would like to hire a person to manage the office.  The job requires the employee to do secretarial work, make telephone calls, input data into the computer system and bill clients.  Mary Jones, who is blind, applies for the job.  Dunix finds her qualified, but in order to hire her, Dunix would have to change its computer systems and make structural changes to the building.  The changes would initially cost $30,000.  If Dunix fails to make the changes, can Ms. Jones claim that Dunix did not make a reasonable accommodation?  Can Dunix claim undue hardship?  due thurs 2 pages