The volume of a spherical balloon with radius 4.1 cm is about 289 cm cubed. Estimate the volume of a similar balloon with radius 20.5 cm. The larger balloon has a volume of about nothing 20.5cm cubed.

Step-by-step explanation:

Since the larger balloon is similar to the smaller balloon, we must assume that it is also spherical.

The volume of a sphere is:

where r = radius of the sphere

The radius of the balloon is 20.5 cm, hence, its volume is:

The volume of the larger balloon is  

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.

a

step-by-step explanation: