Can someone help me the value of h(k(x)) is equal or not equal to the value of k(h(x))

functions h and k r or arent inverse functions

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.

[tex]5 \times1 \frac{12}{13} [/tex] me

The distance between two points is 6.5cm and scale of map is 1: 1000 what's the distance between the two points