I've opened the image. It contains geometry problems involving circles, solving for angles $x$ and $y$. Let's break it down step-by-step.

The diagrams appear to show circles with marked angles and arcs. Since I can't directly copy the values from the image, please verify if the given values are as follows:

For (a):

1. There is a circle with a central angle (vertex at the center) marked as $6x + 10$.
2. There are two arcs or angles outside the central angle.

For (b):

1. Another circle has an angle marked as $4y + 30^\circ$.
2. The arc seems to have different marked values, possibly related to finding $y$.

Please confirm or provide additional details, so I can give you detailed step-by-step solutions for both problems.