9*15=135
15*4.8=72
9*4.8=43.2
135+72+43.2= 250.2ft (Surface Area)
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9*15*4.8=648ft (Volume)
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Hope this helps
<span>C. The people in the study walked an average of 48.1 minutes each day.
</span>
Answer: The answer is C. $20.00
Step-by-step explanation: