#### Answer

20

#### Work Step by Step

To solve this equation, we first find out how many seats are on the main floor. We multiply 30 * 25 = 750 seats on the mean floor. To find the number of seats remaining for the balcony, we subtract total seating 1250 - 750 = 500 seats for the balcony. It has 25 rows, so we divide 500 / 25 = 20 seats per row.