COVID-19 symptoms left President Joe Biden with a deep, raspy voice and persistent cough as he met Friday via videoconference with his top economic team, but he tried to strike a reassuring tone, declaring, “I feel much better than I sound.” White House officials say Biden is working more than eight hours a day. His appetite hasn’t diminished, and he signed bills into law and took part in his daily intelligence briefings, albeit via phone. The president’s doctors say his mild symptoms are improving and he has responded well to treatment. He tested positive for COVID-19 Thursday.