Your results should include the trip id, user id, trip length and trip cost. There are at least two ways to do this problem. We prefer the method with the subquery and/or join. Compute the length of each trip first, and then compute the cost. Order the results by trip id in ascending order. Also, submit the top 10 rows of your output, without any special ordering.

there is no universally accepted definition of art. although commonly used to describe something of beauty, or a skill which produces an aesthetic result, there is no clear line in principle between (say) a unique piece of handmade sculpture, and a mass-produced but visually attractive item. we might say that art requires thought - some kind of creative impulse - but this raises more questions: for example, how much thought is required? if someone flings paint at a canvas, hoping by this action to create a work of art, does the result automatically constitute art?