Mathematical terms that mean the opposite of

Which expression gives you the distance between the points (5,1)and(9,-6)

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

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.