Stephanie was injured in a car accident and was rushed to the emergency room. She received stitches for a focial 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 o $$300$ annual deductible. Assume that Stephanie went to a hospital within her PPO network. Her total emergency room bill was $$700.$

a$.$ What amount did Stephanie have to pay?

Insured's cost

b$.$ What amount did the PPO cover?

Insurance ph:thent