A 39-year-old widow buys a new residence for $150,000. Three months later, she sells her old residence for $310,000 (adjusted basis of $120,000). Selling expenses totaled $21,000. She lived in the old house for 15 years. a. What are the widow's realized and recognized gain or loss? (Do not leave cells blank, enter "0" if there is no effect.) b. What is her basis in the new residence