What is an equation of a line, in point-slope form, that passes through (1, −7) and has a slope of −2/3 ? a)y−7=2/3(x−1) b)y+7=−2/3(x−1) c)y+7=2/3(x+1) d)y−7=−2/3(x+1)

Explain how you can use the associative property to evaluate (7x50)x4.

Answer for 10 points show work you guys in advanced < 3

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.