Answer:
68
Step-by-step explanation:
1) 40+7=47
2) 47+7=54
3) 54+7=61
4) 61+7=68
Answer:
B.
Step-by-step explanation:

Looking at the image of the cube you can see the outer edges would have paint on 2 sides and the corners would have paint on n3 sides.
The only ones with paint on one pace is the center cubes.
There are 6 sides to a cube and there would be 6 center pieces.
Answer: 6