Given the following square: solve for x. (9x-9)

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

Can someone me with these two circle theorem questions asap?

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.