"No," she said. "I need to understand."
Ana blinked. "It's math. There's no wrong."
Because the calculator had taught her the most important lesson: sometimes, the answer isn't "yes" or "no." Sometimes, the answer is "not alone."
The security guard, a kind man named Javier who had seen a thousand worried faces, pointed her to the financial museum. "The public office is around the corner, señorita."