Answer:
145 chairs
Explanation:
To solve this problem, we can multiply the number of rows by the number of chairs per row to find the original number of chairs in the theater.
Then, we can add the number of extra chairs to find the total number of chairs in the theater now.
6 rows × 23 chairs/row = 138 chairs
138 chairs + 7 extra chairs = 145 chairs
Therefore, there are now 145 chairs in the theater.