Since each row will have a total of 9 seats, then we would simply need to divide the total number of individuals that will attend the show by 9 in order to calculate the number of rows that need to be set up around the performing ring.
513 / 9 = 57 rows
Therefore, we can see that we would need a total of 57 rows of 9 chairs each in order for there to be enough chairs to seat 513 people.
We are asked to sum the two trinomials . We can start by using the distributive property to remove the parenthesis, giving us . Next, when we combine like terms, we get . Hope this helped!
. We can start by using the distributive property to remove the parenthesis, giving us 
. Next, when we combine like terms, we get 
. Hope this helped!