Question

Satellite a has an orbital radius 3.00 times greater than that of satellite

Answer 1

Thank you for posting your question here at brainly. Below is the solution:

To find the circumference (orbit) of an object, you use Pi x Diameter. 
As you have the circumference of B, you divide it by Pi to get the Diameter. 
So 120 divided by 3.141592654 = 38.2 minutes for the Diameter. 

As' radius and Diameter will be 3x greater than B. 
38.2 x 3 = 114.6 
To get back to the orbital period, times 114.6 by Pi, and you will get 360 minutes.