$4180.56
 
 
 
 First, determine the area of the driveway by multiplying its length by its width, so
 
 a = 10 * 150.5 = 1505 ft^2
 
 
 
 Now convert from ft^2 to yd^2 by dividing by 9.
 
 1505 ft^2 / 9 ft^2/yd^2 = 167.222 yd^2
 
 
 
 Finally, multiply by the cost per sq yd
 
 167.222 * 25 = 4180.56