a pile of bricks is arranged in rows. The number of bricks in each row forms the arithmetic sequence 65, 59, 53.....

a) One row containts 17 bricks. Which row is this

b) How many rows of bricks are there? Explain your assumptions and answer...

The general term for arithmetic sequences is Term "n" = a (initial term) + d (common difference) (N-1)

The answer for the question is Row 9

Please explain me how to do it....