9. what is the value of n in the equation
1.9 x 10^7 = (1 x 10^5)(1.9 x 10^n)? algebra is kinda hard if you would that would be greatly appreciated and

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.