McGraw-Hill's Taxation of Business Entities 3rd Edition by Connie Weaver, Brian Spilker, Edmund Outslay, John Robinson, Ronald Worsham, Benjamin Ayers, John Barrick

Exercise 64

Maria is not a citizen of the United States, but she spends 180 days per year in the United States on business-related activities. Under what conditions will Maria be considered a resident of the United States for U.S. tax purposes