The demand function for a certain brand of cd is given byp = −0.01x2 − 0.2x + 9where p is the wholesale unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. determine the consumers' surplus if the market price is set at $6/disc. (round your answer to two decimal places.)

Zed is making a centerpiece for his dining room table by putting sand in a cube-shaped vase. the vase is 0.25 meters in length, width, and height. he bought 25 kg of sand. assume the density of dry sand is 1,602 kgm3. what is the volume of the sand that zed purchased? the volume of the sand is approximately m3. enter your answer as the number that correctly fills in the blank in the previous sentence. if necessary, round your answer to six decimal places, like so: 42.536475