What is the scale factor

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.

Which statements are true about additional information for proving that the triangles are congruent check all that apply

Joey is asked to name a quadrilateral that is also a rhombus and has 2 pairs of parallel sides. should be his answer