An aquarium tank in the shape of a rectangular prism is 56 cm long, 29 cm wide, and 24 cm high. The top of the tank is open, and the glass used to make the tank is 1 cm thick. The volume for the aquarium is 37,352 cm3. What if, to provide greater strength, the glass bottom were increased to a thickness of 4 cm? How much less water would the tank hold? The tank can hold cm3 less water than a tank that can hold 37,352 cm3 of water.

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.