Question

fix any punctuation or capitalization errors below. click \submit answer\ if there are none.
whenever black panthers friends baked cookies; they ate the entire batch in one sitting.

Explanation:

The sentence starts with a subordinate clause ("Whenever Black Panther's friends baked cookies") followed by a main clause ("they ate the entire batch in one sitting"). A semicolon is incorrect here; a comma should be used to separate the subordinate clause from the main clause.

Answer:

Whenever Black Panther's friends baked cookies, they ate the entire batch in one sitting.