Simplify the square root of 864. i cant remember this, tell me how you got the answer.

Identify the number as a rational or irrational. explain. 127

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?