Abox office sells 12,000 tickets in 10 days for a music concert. it sells 3,483 tickets the first day and 2,901 tickets the second day. if they sell the same number of tickets for each of the remaining days, how many tickets do they sell each day?

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.