Answer:
Number 7 is 34.56in
Step-by-step explanation:
First: Label each side Ex: Left side:
Top:
Bottom:
etc.
Second: Find the area of each side
Third: add them together
P.S. since this was a perfect cube, you could've also just found the area of 1 side then multiplied by 6:)

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Answer:
14/3
Step-by-step explanation:
To find the volume of a rectangular prism, you need to multiply the area of the base by the length or height of the prism. In this case, the area of the base is 3 1/3, and the length of the prism is 1 2/5 units. Multiplying these together you get:
cubic units. Hope this helps!
Answer:
70
Step-by-step explanation:
2 x (25 + 10) = 2 x 35 = 70