In the diagram below DE is parallel to XY what is the value of Y

Geometry answer picture question pls . reason and statements

What is the 12th term of b(n)=-4-2(n-1)

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.