Building on Example 3-1, but where you must drive 5 miles round trip to the store in a vehicle that gets 25 miles per gallon (at a gasoline price of $3.50 per gallon) in order to buy the soda machine, flavor bottles, carbonation canisters, or two-liter bottles every time you want to drink soda, what are the total costs in the first year? What are the total discounted costs over 5 years at a 5% rate? Discuss qualitatively how your model results might change if you were buying other items on your shopping trips.
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