Colin Is buying dirt to fill a garden bed that is a 9ft by 11ft retangle. If he wants to fill to a depth of 4in. How many cubic yards of diets does he need? If necessary, round to the nearest cubic yard.

1584 yards cubed.

Convert all the measurements to inches.

9*12=108

11*12=132

Multiply 108 and 132 to get the area.

108*132=14256

Multiply 14256 by 4 to get the volume.

14256*4=57024

Divide by 36, because there are 36 inches in a yard.

57024/36 = 1584 Yards Cubed