Which of the following is false? * A. 0.7777 is a rational number

B. 0.499999 is a rational number

C. 4/5 is a repeating decimal

D. -6.45 is a terminating decimal

1. are the triangles similar and if so why? what is the value of x? show your work.

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that

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.