Which equation results from taking the square root of both sides of (x + 9)2 = 25?
x + 3 = ±5
x + 3 = ±25
x + 9 = ±5
x + 9 = ±25

Divide. write in the simplest form. 4 1/6 divided by 10

Which of the following is the result of expanding the series

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.