Which table represents a direct variation function? Input x 1 2 3
Output y 3 5 7
Input x 69
12
Output y 8 12 16
Input x 4 6 8
Outputy 7 9 11
Input x 34 5
Output y 9 16 25

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.