Assuming 15 ft and 9 ft, the answer in 135 sq ft
15 x 35 = 525 sq ft 9 sq ft in 1 sq yd 525 / 9 = 58.33 square yards
1 sq yd are in 9 sq ft
9 sq ft = 1 sq yard so 20909 sq ft = 20909/9 = 2323.222... sq yards.
9 sq ft = 1 sq yd so 45 sq ft = 45/9 = 5 sq yds
1 sq yd = 1 yd * 1 yd = 3 ft * 3 ft = 9 sq ft. 11 ft * 9 ft = 11*9 sq ft = 99 sq ft = 99/9 sq yd = 11 sq yd
3 sq yards = 3*9 sq ft = 27 sq ft
9 sq ft = 1 sq yard so 5160 sq ft = 5160/9 = 573.33... recurring sq yards.
One sq yd is 9 sq ft, (3ft x 3ft) so 12 sq yds is 108 sq ft (12 x 9 sq ft)
9 sq ft = 1 sq yd525 sq ft = 581/3 sq yd
1 sq yd = 9 sq ft61.33 sq yd = (61.33 x 9) = 551.97 sq ft
Assuming you mean how many square yards in 19 sq ft:1 sq yd = 1 yd x 1yd= 3 ft x 3 ft= 9 sq ft⇒ divide by 9 to convert square feet to square yards⇒ 19 sq ft = 19 ÷ 9 sq yds= 21/9 sq yds~= 2.11 sq yds