In the diagram below, line p intersects line m and line n. n
2
1
m
If m_1 = 7x and mz2 = 5x + 30, lines m and n are parallel when x equals
12.5
А
B
15
С
87.5
D
105

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.