No, yes, no, yes
What part of comparing number values do you not understand? Most folks figure out enough about place value to be able to answer this by 3rd grade. If there's something about this question that really stumps you, please advise in the comments.
Lol im not sure
Maybe try something else or leave it and try the next one
Answer:
Step-by-step explanation:
start by gathering all the x together.
6x-3x-2x=1x
what you have left is 1x+4=?x+?
Answer:
The length of each side of the polyhedron, s is 4.142 or
= 
Step-by-step explanation:
If we take the distance of the length of the side of the cube where Donatello make the cut to the corner of the cube as x we get the side of length each polyhedron as

x·√2 because we have an hy
Therefore, the original cube had sides of length
10 = 2·x + x·√2
Solving for x we get

Therefore the length of s is x·√2 which gives

The length of each side of the polyhedron, s = 4.142.