The cost of energy for operating water desalination plant in Saudi Arabia was $1.4 million for the first three years. Beginning in year four, the cost increased by $30,000 each year for the next 12 years. What is the present worth in year 
0
0 of these energy costs at an interest rate of 
6
%
6% per year? In your entire response, the letter b should appear less than 18.
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