A manufacturing firm just received a shipment of 42 assembly parts, of slightly varied sizes, from a vendor. The manager knows that there are only 29 parts in the shipment that would be suitable. He examines these parts one at a time. a. Find the probability that the first part is suitable. (Round your answer to 2 decimal places.) Probability b. If the first part is suitable, find the probability that the second part is also suitable. (Round your answer to 4 decimal places.) Probability c. If the first part is suitable, find the probability that the second part is not suitable. (Round your onswer to 4 decimal places.)