275,000 km
The moons A, B, C form a right triangle with AC forming a hypotenuse with the diameter of the planet and the distance of both moons from the surface. So add A to the surface, plus the diameter of the planet, plus surface to c.
115000+45000+115000 = 275000
(I) 
(II) 
Get
alone in equation (II)

Insert new equation (II) in equation (I)

Insert
in equation (II)

There should be two characteristics that we look at the numbers when grouping them.
The first one is their signal, if they are positive, or negative.
The second one is if they are decimal, or not.
Looking at these characteristics, we can see the sets in which they belong.
Answer:3.0 LEMON SQEZY
Step-by-step explanation:Ez PZ