The function y=f(x)y=f(x) is graphed below. Plot a line segment connecting the points on ff where x=-8x=−8 and x=-5.x=−5. Use the line segment to determine the average rate of change of the function f(x)f(x) on the interval -8\le x \le -5−8≤x≤−5?

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.