The area is length x width which means it would be 14 x 8
14 x 8 = 112 so the area of the rectangle is 112 square ft.
2 figures are congruent if at least 2 sides are the same length, there angles are the same, etc
More because it would be starting from 1 then going up to 2 4/5 so that means that he is planning to add music to his playlist.
X=9!! hope this helped you