The arc and the central angles will be the same.
If you were making a replica ferris wheel it would be similar to the larger ferris wheel. This means that all the angles would be the same. If the angles were the same, the arc measures would also be the same.
4 · x^4 · x^4 · y
4 x^8 y
In words: four times x to the eighth times y
Your best bet is A. 524
Use the formula V=4/3(pi)r^3 or

Not sure if that made sense but you need to multiply to radius(cubed) by pi and divide it by 4/3
Next time just google the volume formula of a sphere
X =(-5-√97)/6=-2.475 or x =(-5+√97<span>)/6= 0.808</span>
5/7
explanation: (5-0)/(7-0) = 5/7