Please someone help me . Which side of triangle FOX corresponds to the side FA?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

What is 140% of 25? because i need

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.