PLEASE HELP ASAP! ILL MARK BRAINLEST i feel like i’m missing one

What is the equation of the graph below? y=sec(x)-4

In an improper fraction, is the numerator equal to, less than, or greater than the denominator

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.