Is this a proportional relationship?
explain why or why not.

(1, 40)
(2, 50)
(4, 70)
(5, 80)

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.

Write and solve a real word problem that involves determining distance on a coordinate plane

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square