le st 17. The water authority charges $10.00 per month for the meter rent, $2.50 for the first 1 000 litres and $0.10 for each additional 100 litres. What is the total bill for 2 500 litres used in one month? (A) $ 4.00 (B) $12.70 (C) $14.00 (D) $14.90