7. What fraction of a clockwise revolution does the hour hand of a clock turn through, when it goes from
(a) 6 to 12
(b) 5 to 8

hi there if you are there
please reply it is a very urgent assignment that I have to send it by today .

Which system of linear inequalities is represented by the graph?

Solve the inequality and graph 6j - 7 < 5

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.