Which is the simplified form of the expression ((2^-3)(x^-3)(y^2) / (4^-2)(x^4)(y^6))^2

Volume of cylinder with a radius of 8cm and height of 25 cm

For the equations below which statement is true ?

Astore has apples on sale for three dollars or 2 pounds how many pounds of apples can you buy for nine dollars if an apple is approximately 5 ounces how many apples can you buy for nine dollars