Final answer:
To evaluate g(4), the specific function g(n) is required. To solve for g(n)=7, we equate the function to 7 and solve for n. Simplification and reasonability checks are key steps in the process.
Step-by-step explanation:
To evaluate g(4), we would need the specific function definition of g(n), which is not provided in the question. Without this information, we can't calculate g(4). However, to solve g(n) = 7, we would set the function g(n) equal to 7 and solve for n based on the actual function's form. For example, if g(n) were defined as g(n) = n + 3, then we would solve the equation n + 3 = 7, resulting in n = 4.
When performing these calculations, it is important to eliminate terms wherever possible to simplify the algebra and always check the answer to ensure that it is reasonable given the function’s definition. If we were given the context of the parent body's mass (M) and the orbits of its satellites, we'd need additional information to use the relevant equations. As it stands, the question seems to pertain to a general mathematical function, not the application of orbital mechanics.