What is the slope of the line that contains the points (3, 4) and (1, 2)?
a. 1
b. 1
c. d.

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

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Can you me find the missing length. i attached an image.