The author here is describing, in a sequential or chronological way, a series of events that took place in the past (hence the use of the past tense), namely: 1) "...he finally convinced...", 2) "Early results were not..." and 3) "...but... customers became hooked."
she invites Walter over, jem shows his maturity here because he has learned the lesson that Atticus has tried to teach Scout: Look at the situation from the other person's point of view.
don't know for sure but i think the awnser is b
Do you mean plagiarism? If you do then copying or stealing could be a synonym
