Iused the answer key to get my answer and checked it with my dumb useless teacher and it’s right but, he won’t tell me how to get the numerators like how does it go from 3 & 7 to 15 & 14

How many solutions does the nonlinear system of equations graphed below have?

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

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.