Please help! ASAP! 50 points and Brainliest! Prove that the two circles shown below are similar. I would like a full explanation will some explanations if needed. Please if you answer give a good detailed answered because I worked hard for these points. Thank you.

Construct the graph that models the given situation

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.

Will give brainliest b. describe the function over each part of its domain. state whether it is constant, increasing, or decreasing, and state the slope over each part.