The adjective is "weekend," because it is describing the noun "conference."
Today and tomorrow are also adverbs, not adjectives :)
Restate
answer
textual evidence
explain
conclusion
Answer:
The tone of a story is the attitude/emotion towards a subject(character).
Its the first one . you don't need a "," before and unless it is listing 3 or more things. with the second one the "," is in the wrong spot