Question

uhhh please. answer it ​

Answer 1

7 times the volume of small sphere = volume of larger sphere

7*4/3πr^3=4/3πR^3

7*4/3*22/7*3*3*3=4/3*22/7*R^3

3*3*3*7=R^3

Volume of the biggest one = volume of two spheres

4/3*πR1^3=4/3*π3*3*3(1+7)

R1^3=27*8

R=3√27*8

R=18cm