Step-by-step explanation:
from which text book please
Answer:
4) 40 Square inches
Step-by-step explanation:
You do 2 x 4 then divide by 2. after that you multiply by 4. Then you add the square which is 2 x 2
It would be the last one because 5 columns are shaded and there are 10 columns all together. 50/100= 0.5
It takes 48 hours if 12 people built the same wall.
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