Which is the better deal? 20-minute spa for $45 or 60-minute spa for $138
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Answer:
Step-by-step explanation:
A rectangular prism is a three-dimensional solid.
A rectangular prism has six faces (each one of these faces are rectangles), eight vertices and twelve edges.
You know that this rectangular prism has 5 layers and the volume of one of these layers is 18 cubic centimeters ().
Assuming that all these layers are equal, the volume of this rectangular prism can be calculated with:
Where is the volume of one layer.
Substituting, you get: