Mary need 3 pounds
2 answers:
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Answer:
Volume: 72 cubic in.
Equation for height:
Step-by-step explanation:
The volume is the brick is 5.76 over 0.08, because it is 0.08 lb per cubic inch.
Now, we divide to get 72 cubic inches. This is the volume of the brick.
To find the height, we can use what we found as the volume and set up an equation: . This means h is 72 over 18, or h = 4.