qqp question1: A car travels from A to B at the rate of 40 miles per hour, and then returns from B to A at the rate of 60 miles per hour. Is the average rate for the round trip more or less than 50 miles per hour? Why? question2: A bullet twists at the rate of 1 twist per 12 inches. How many times does it revolve while it travels 20 feet?