Rodrigo practiced playing the guitar for 15 1/3 hours over the past 3 weeks. He practiced for 6 1/4 hours during the first week
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To solve this problem you must apply the proccedure shown below:
1. You have that:
-The length is feet.
- The width is feet.
- The height is feet.
2. The box has one base. The cost of the base is:
3. It has four sides. The cost of the sides are:
The answer is: The total cost is