The ratio of centimeters to miles on the map of the united states is

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Given abcd ac=38 and ae=3x+4 find the value of x

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.