I see the image you've uploaded is related to a problem involving the motion of a particle, focusing on its position, velocity, and acceleration over time. It includes steps such as calculating velocity, acceleration, and interpreting graphical data.

Let me help clarify the key parts or solve specific portions of it:

1. It looks like part (h) asks when the particle is speeding up or slowing down, requiring you to use interval notation. This generally depends on the signs of both velocity $v(t)$ and acceleration $a(t)$. The particle speeds up when $v(t)$ and $a(t)$ have the same sign (both positive or both negative), and slows down when they have opposite signs.

Would you like me to focus on this part, or do you want a detailed explanation of any specific section from the problem?