pls help me with this thank you!!

Seorecoution by two methods A storage tank acquired at the beginning of the fiscal year at a cost of $118,800 has an estimated retiduat value of 37,200 and an estimated usehul ife of 4 yearz. a. Determine the omount of annual depredation by the itraight-line method. b. Determine the amount of depreclation for the first and second years computed by the double-deci ning.balance mothodi. Do not round the double-declining balance rate. If required, round your answers to the nearest dollar. rotacke wist