The price $p of a steel ball is proportional to the cube of its radius x cm. The price of a steel ball of radius R cm is $48.

(a) Find the price of a steel ball of radius R/2cm

(b) If R=2,
(i) find the equation connecting p and x,
(ii) find the total price of a steel ball of radius 3 cm and a steel ball of radius 4 cm.

Ans.
a)6
b) i)p=6x^2
ii)$546​