What multiple of 7 is also a factor of 7

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

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.