A storage tank is in the shape of a right circular cylinder capped with a hemispherical dome. The inner diameter of the tank is 15.0 ft and the height from the floor to the inner top of the hemisphere is 25.0 ft. The entire inside area of the tank needs to be coated with a sealant. One gallon of this sealant is required for every 150 square ft. What is the capacity of the tank in gallons? How many gallons of sealant are required to cover the inside surface of the tank?

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