How many significant figures does 1700000000 have ?

The consumption of fossil fuels could be

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Use the profile illustrated for problem (1). assume that the layer of silty sand fill (sm) is placed over the entire site. estimate the thickness of the fill (h - in feet) that will cause the effective vertical stress at the center of the clay layer to increase by 517.5 pounds per square foot.