Answer:
6
Explanation:
Let the number of seats in one row be
, then the number of rows will be
.
So the total number of seats will be
, and that's equal to 180.
We have
![5x^2=180\\x^2=36](https://img.qammunity.org/2022/formulas/mathematics/high-school/3vr0xk2qsv7dw1vprm0q3pdek4g66cb54m.png)
And since
has to be a positive number because it represents the number of seats, we know that
.
So the number of seats in one row is 6.