choose the most appropriate translation of the English sentence. the radius of a ballon (which depends on the amount of air inside) is 3 inches. A. Radius(air) 0 C. Radius(air) = 3 D. Air(radius) = 3

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.