It seems that the image includes a math question, specifically question 6 with different parts (a) and (b). Here's a breakdown of what I can see from the image:

Question 6:

(a)

The variables $t$ and $z$ in the following table are related by the formula $z = at^n$, where $a$ is a constant and $n$ is a positive integer.

(i)

Use the data from the table to determine the values of $a$ and $n$.

(ii)

Use the values of $a$ and $n$ obtained in part (i) to complete the following table:

(b)

If $v$ varies directly as the square of $x$ and inversely as $\sqrt{y}$, given that $v = 18$ when $x = 3$ and $y = 16$, find the value of $v$ when $x = 5$ and $y = 4$.

Would you like me to solve part (a) or part (b) first, or both?