“ triangle RST is translated 6 units to the left and 4 units up to create triangle R’S’T.” “which rule best describes this transformation?”

a. (x, y) —> (6x,-4y)
b. (x, y) —> (6-x, 4y)
c. (x, y) —> (x+ 6, y- 4)
d. (x, y) —> (x-6,y+ 4)

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.