Abox contains 13 red blocks, 8 orange blocks,9 green blocks, and 10 blue blocks . shelly randomly chooses a block from the box.
what is the probability that the block will not be green ? write answer as decimal

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.