Answer: 16000 square yards
Explanation:
Well convert 48,000 feet to yards to find the area in square yards. 
It says that 
3 ft is 1 yards so you can set up the proportional equation and solve for how many yards there will be. 
 cross product to solve for x
 cross product to solve for x 
3x = 48000 
x= 16000 
So there are 16000 square yards for 48000 square feet