Your utility bills for sewer quarterly and it is based on the water usage rate. Rates are as follows: $0.50/1000 gallons for first 10,000 gallons, $0.40/100 gallons for next 15,000 gallons, and $0.30/1000 gallons for all over 25,000 gallons. If a customers uses 37,000 gallons/quarter, what would their bill be?