Are the triangles congruent? Why or why not? Yes, AngleA ≅ AngleD and AB ≅ DE. Yes, they are congruent by either AAS or ASA. No, AngleC is not congruent to any angle in TriangleDEF. No, the congruent sides do not correspond.

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.