Answer: Addition Property
Step-by-step explanation:
The difference between steps one and two is that the -9 is added to the other side to isolate 5x. (added- addition property)
3/4+1/4=1
I’m not sure why you put the thing about Melanie there.
Answer:
C
Step-by-step explanation:
Convert to improper fraction and multiply them, then convert back to mixed fraction :)
Answer:
1. 301.6 
2. 576 
3. 274.41 
Step-by-step explanation:
We know that the diameter of one of the spheres must be 4 in, because the length of the box is 12 in and there are 3 spheres along each side, and
. That means that the radius of a sphere is 2 in. Put 2 into the formula for the volume of a sphere, and then multiply your solution by 9, to get the total volume.
Then, you can find the volume of the box, because you know its dimentions are 12x12x4.
Subtract your answer for part 1 from your answer for part 2, and you have the solution to part 3. Hope this helps!! :-)