The area of a tennis court is 2808 square feet
Area of Tennis Court = 2808 square feet
The area of a tennis court is 8 square feet more than 3.5 times the size of the area of a racquetball court.
Area of Tennis court = 8 + 3.5(Area of racquetball court )
2808 = 8 + 3.5(Area of racquetball court )
Let the area of Racquetball court is x square feet
So, equation will be :

x = 800
Since, the area of Racquetball court is x square feet
The area of Racquetball court is 800 square feet
Answer : The area of Racquetball court is 800 square feet