Answer: While Amanda was at the store, Jack cleaned the house, but the little sister refused to help him.
Explanation:
While Amanda was at the store: dependent clause, when is a subordinating conjuction
Jack cleaned the house: independent clause
The little sister refused to help him: independent clause
the two independent clauses are joined with coordinating conjuction but
mark brainliest pls xxx hope this helped
-Basic spelling and grammar
-Sentence structure
-Proper nouns
-Overall flow
Because this is seen as unprofessional and disrespectful. The only time this would be acceptable would be in a casual setting not a professional one