A brick layer needs to order 6300kg of building sand. One grain of this sand approximately weighs 7x10^-5
How many grains of sand are there in 6300kg of sand? Give your answer in standard form

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Adriveway is 40 yards long about how many meters long is it