It says when U recycle & compost 1.5 tons of paper it = 270 gals of gas saved. They want to know hoe many gals of gas are saved when U recycle 5.5 tons of paper. I know 0.5 tons of paper equals 90 gals of gas saved so 5.5 tons of paper equals 990 gals of gas saved but what's the proper equation format?