The answer is 14137.17 because to find the volume of the sphere, the equation is 4/3 times pi times the radius cubed.
The solution set of 3x+5=x+2 is x=-1. This is because you want to get the variables on one side and the numbers on the other. you subtract x on both sides and subtract 5 on both sides. your equation then becomes 3x=-3. you then divide 3 on both sides and you get your answer of x=-1.
-500 me cause that is the action that is being take place, it decreased by 500