Compute each part of given question:
Question: As you walk across a synthetic-fiber rug on a cold, dry winter day, you pick up an excess charge of -57 uC.
Part I: How many excess electrons did you pick up?
Part II: What is the charge on the rug as a result of your walking across it?
I need tutor help to solve the above question and express your answer to two significant figures and include the appropriate units.