Eachyear, Johan typically does all his own landscaping and yard work. He spends $209 per year on mulch for his flowerbeds, $224 per year on flowers andplants, $57 on fertilizer for hislawn, and $249 on gasoline and lawn mower maintenance. The lawn and garden store where he obtains his mulch and fertilizer charges other customers $506 for the service of spreading that much mulch in flower beds and $52 for the service of distributing fertilizer over a yard the size ofJohan's. Paying a professional yard care service to mow his lawn would require an expenditure of $1,239 peryear, but in that case Johan would not have to buy gasoline or maintain his own lawn mower.