Based on this work, what is the solution to the system? (-4, -4) (0, 0) no solution infinitely many solutions

Answer this question! 30 points and brainliest! only if you know the answer.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

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.