Mrs. Smith earns $20 an hour. Normally, she has to drive into St. Cloud from her home (150 miles away) for a medical consultation. The drive is 2.5 hours each way, Mrs. Smith usually has a one-hour wait, and the consultation takes about an hour. Mrs. Smith estimates that the cost of the transportation is 50 cents a mile. What are Mrs. Smith's travel and waiting costs for each visit?