How many pieces of grass do you need to cover an area of 1139 square feet when 1 pallet equals 500 sq feet and their are 158 pieces in a pallet?

360 pieces - homework question or doing yardwork?

500 / 158 = 3.16 sf per piece of grass

1139 / 3.16 = 359.924 = 360 for all practical purposes.

If doing yard work (i.e. laying sod) figure on a 10% wastage factor and get about 400 pieces