Answer:175ft cube is the volume of the figure.
Step-by-step explanation:The volume of lower part is,
V=L*B*H
V=5*7*2
V=70ft cube
Volume of upper grade part is,
V2=L*B*H
V2=3*5*7
V2=105ft cube
Therefore total volume=V+V2
=175 ft cube
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