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By explaining problems and giving solutions! this is the best fit because the other two might make sense at a first glance, but only explaining problems and solutions would be an effective way to teach people how to set up an aquarium by giving them examples of what to do and what not to do whereas the others are just him talking about his aquarium.
The answer is B less than 20 percent
or another one is less than 10 percent it depends on which you got
Answer:
"The letter was addressed to James and I."
Explanation:
