Stephanie was injured in a car accident and was rushed to the emergency room. She received stitches for a facial wound and treatment for a broken finger. Under Stephanie's PPO plan, emergency room care at a network hospital is 70 percent covered after the member has met a $300 annual deductible. Assume that Stephanie went to a hospital within her PPO network. Her total emergency room bill was $840. This is Stephanie's first medical expense of the year. (a)What amount did Stephanie have to pay? (Do not round intermediate calculations.) Amount to be paid $ (b)What amount did the PPO cover? (Do not round intermediate calculations.) Amount of coverage $