solve it clearly

An extra hazard industrial plant contains large quantities of high combustibility materials including dusts and lint. The size of this plant storage (total area of operation) came to 3000ft2. The installed fire system consists of sprinkler heads where each one covers an area that measures to 200ft2. Using the dencitv 1) Determine the required water demand in GPM in this plant fire system. 2) Determine the required total number of sprinkler heads in this fire system. 3) Determine the required water pressure at the most remote sprinkler head knowing that K-factor for each sprinkler (as taken from the manufacturer's literature) equals to 195