SOLUTION: Frank bought a dog one day for $2.50 and spent one hour per day for nine days trying to sell it. Food for the dog cost him 25 cents, and he spent a total of four hours in cleaning

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Question 251152: Frank bought a dog one day for $2.50 and spent one hour per day for nine days trying to sell it. Food for the dog cost him 25 cents, and he spent a total of four hours in cleaning and caring for the dog. He sold the dog for $3.75. How much did he profit per hour for the time spent on the whole transaction? (Round to the nearest cent.)

A.8 cents/hour B.10 cents/hour C.11 cents/hour D. 14 cents/hour E. 29 cents/hour
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
cost of the dog was $2.50

His monetary expenses were $.25 which means he made a profit of $3.75 - $2.50 - $.25 = $3.75 - $2.75 = $1.00

he spent a total of 4 hours in cleaning and caring for the dog.
he spent a total of 9 hours in trying to sell the dog.

his profit was $1.00 / 13 = $.076923077 per hour.

round that to the nearest penny and it becomes 8 center per hour which would be selection A.