Question 228269
Here's how I worked this problem:

144 Chairs
CPR (chairs per row)= 2R - 2
(R=row)  (two less than twice the number of rows)

Now, I factored 144 and noticed that {{{16x9=144}}}

I plugged the 9 into the the equation as 9 rows:

{{{CPR=2(9)-2}}}

Solve further:
{{{CPR=18-2}}}

{{{CPR=16}}} 

So, in there are 16 chairs per row and 9 rows, And those two number multiplied equal 144.