An artist is arranging tiles in rows to decorate a wall each new row has two fewer tiles in the row below it if the first row has 23 tiles how many tiles will be in the seventh row?

this article will :

no options provided, here,but the answer to this question is often: a historian cites a japanese newspaper article published a year after the end of world war ii in order to draw conclusions about the effect of the war on the japanese economy.

clearly from the answer, the historian alludes to historical sources,and records to aid in analyzing and drawing conclusion on the effect of the war on the economy of japan.

i would need the graph to answer the question