Whispering Corporation purchased a new machine for its assembly process on August 1, 2020. The cost of this machine was $144,000. The company estimated that the machine would have a salvage value of $18,000 at the end of its service life. Its life is estimated at 5 years, and its working hours are estimated at 18,000 hours. Year-end is December 31.
Compute the depreciation expense under the following methods. Each of the following should be considered unrelated.

(a) Straight-line depreciation for 2020.
(b) Activity method for 2020, assuming that machine usage was 780 hours.
(c) Sum-of-the-years'-digits for 2021.
(d) Double-declining-balance for 2021.

answer; by looking at total product,marginal product,and changes in both after changes in inputs

a. primarily outdoors, responding to emergencies and protecting people.

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among other factors, composers started writing dynamic markings in their scores because "new instruments allowed for more dynamic ranges and contrast."

dynamics allude to the loudness or softness of music. dynamics offer an approach to demonstrate articulation in sheet music. they to drive the enthusiastic substance of music through volume and force. maybe you could alter both the volume and the shading profundity on your screen at the same time. we can likewise think about the force side of elements as the quality of a note. a few notes are intended to be played delicately and gently, while others are intended to be played all the more firmly.  

some dynamics markings have a letter 'm,' which remains for mezzo, signifying 'medium.' so a mezzo piano unique stamping resembles this (mp) and intends to play medium calm, while a mezzo specialty dynamic resembles this (mf) and intends to play medium loud.