its called 'Seriously singing' would mean a lot if u subbed :)

Describe the domain and range of y=2(3)^x-2+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.

Find the measure of angle a in the following triangle