To be deductible, a business expense must be both ordinary and necessary. An ordinary expense is one that is common and accepted in your trade or business. A necessary expense is one that is helpful and appropriate for your trade or business. An expense does not have to be indispensable to be considered necessary. It is important to separate business expenses from the following expenses:
A duple meter metronome that is useful for 2/4, 2/8, 2/2 (cut time), and 6/8 when it has two beats per measure.
There are two sets of on-peak hours to reflect this. Smart Meters: The Key to Time-of-use Pricing Time-of-use requires one vital piece of equipment: Smart Meters tell your utility exactly how much electricity you are using and when you use it. Old hydro meters could only measure how much power you used.