Simplify the following polynomial expression.
(3.42 - - 7) – (53x2 - 4x - 2) + (x + 3)(x + 2)
What polynomial is it?

What degree is it

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.