Answer: 18 chairs in each row.
Step-by-step explanation:
This problem is asking us to divide the 352 students attending the talent show into 21 even rows.
352 / 21 = 16.7619 chairs
This is not a usable number in the context of this real word problem, so we will round up to 17 chairs.
Finally, 17 is not an even number, so we will answer this question with 18 chairs in 21 rows. This will give 378 chairs (18 * 21 = 378), which will be enough for the 352 students.