What is the total area of the figure?
4ft, 5ft, 8ft, 9ft, 9ft

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

This is about circle theorems. someone asap : (

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.