A function is defined by f(x)=x/4 What is f(-8)

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25

Is the figure congruent? yes or no?

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.