Answer:
(B) 357
Explanation:
Since there are 357 people in the theater and each rows 24 people, we can determine the number of rows in the theater by dividing 357 by 24:
357 / 24 = 14.875
Since you can't have a part of a row, we must round up to the nearest whole number, which is 15.
If you multiply 15 by 24, you get 360, which is is the total amount of people the theater can hold.
Since there are only 357 people, one row has three empty seats.