Michelle is working on a design for a new building. She has built a model of the building according to the clients specifications. The height of the model is 15 inches, the slant height of the model is approximately 17 inches, and the base has a length of 14 inches and a width of 20 inches. Michelle must order appropriate equipment to heat and cool the building, so she must use the model to determine how much space there will be inside. What is the volume of her model? (Round to the nearest hundredth, if necessary).