Please explain and answer part A and B fully.

MACRS depreciation expense and accounting cash flow Pavlovich Instruments, Inc., a maker of precision telescopes, expects to report pretax income of $432,000 this year. The company's financial manager is considering the timing of a purchase of new computerized lens grinders. The grinders will have an installed cost of $83,900 and a cost recovery period of 5 years. They will be depreciated using the MACRS schedule Corporate tax rates are given a. If the firm purchases the grinders before year-end, what depreciation expense will it be able to claim this year? b. If the firm reduces its reported income by the amount of the depreciation expense calculated in part a, what tax savings will result? a. The depreciation expense they will be able to claim this year is $ (Round to the nearest dollar.) Cornnrata Tay Rata Srharlula Rounded Depreciation Percentages by Recovery Year Using MACRS for First Four Property Classes retaining while retaining realism. To calculate the actual depreciation for tax purposes, be sure to apply the actual unrounded percentages or directly apply double-declining balance (200%) depreciation using the half-year convention