EX 10-10 Depreciation by two methods A storage tank acquired at the beginning of the fiscal year at a cost of $75,000 has an estimated residual value of $10,000 and an estimated useful life of 20 years. Determine the following: (a) the amount of annual depreciation by the straight-line method and (b) the amount of depreciation for the first and second years computed by the double- declining-balance method. ue recent survey. 80% of the community favored building a police substation in their neighborhood. If 15 citizens are chosen, what is the mean number favoring the substation? A) 1.5 B) 2.4 C) 3 D) 12