Answer:
Marginal product is the additional output produces when one more unit of labour is employed. In our case, when Elmo hires a second worker, his marginal product is 7.
Us. It doesn't make sense to say "was more useful to you than to we"
1 the first one because I put it and got it
When I read a story with a dialogue, I start to get an understanding on what the plot of the story may be. Foreshadowing is also something that happens in dialogues that you must pay attention to, it gives you clues.
Also, sometimes if a paragraph is long, the reader can get thrown-away from the story or get bored. So a dialogue may interest the reader again.
I hope this helps!