A-Z Technologies, a manufacturer of amplified pressure transducers, is trying to decide between a dual-speed and a variable-speed machine. The engineers are not sure about the salvage value of the variable-speed machine, so they have asked several different used-equipment dealers for estimates. The results can be summarized as follows: there is a 35% chance of getting $21,500; a 41% chance of getting $22,000; and a 13% chance of getting $36,000. Also, there is an 11% chance that the company may have to pay $7,000 to dispose of the equipment. Calculate the expected salvage value.