Ikind of get the question, i got the inequality 1.5x+9.75y < = 50; however, i don't know how to solve it or get the # of ebooks.

let x represent the number of songs, and let y represent the number of ebooks.

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.