Answer:
I think its b lol correct me if I'm wrong
 
        
             
        
        
        
Answer:
What's the question your asking?
Explanation:
It moves with an initial speed of 25.0 miles per second. 
 
        
             
        
        
        
(a) Determine the circumference of the Earth through the equation,
            C = 2πr
Substituting the known values, 
           C = 2π(1.50 x 10¹¹ m)
             C = 9.424 x 10¹¹ m
Then, divide the answer by time which is given to a year which is equal to 31536000 s. 
          orbital speed = (9.424 x 10¹¹ m)/31536000 s
               orbital speed = 29883.307 m/s
Hence, the orbital speed of the Earth is ~29883.307 m/s.
(b) The mass of the sun is ~1.9891 x 10³⁰ kg. 
        
             
        
        
        
What assignment, you have to work with me here i don't know what were working on
        
             
        
        
        
What are you talking about