Is it possible to build a triangle with side lengths of 3,3 and 9

Give me the equations of two lines that have the same slope but are not parallel.

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.

Write the equation in general quadratic form: plz !