Answer and Explanation:
Twain avoided "literary offenses" by not mentioning these works throughout the narrative. This was significant because Twain keeps his attention on the narrative itself, specifically stimulating the themes that the narrative addresses.
In this case, instead of provoking criticism to other known works and authors, Twain highlights a narrative with themes that provoke reflections on regional differences and stereotypes, a sense of community and personal integrity.
Sure! First, you find a common denominator for all of the fractions. If you don't know how, search online. When they have the same denominator and they are equivalent fractions, subtract the numerator and keep the denominator. That is your answer!
Delete usual. Custom and usual do not flow together and a custom is already a usual thing, just like tradition.