The answer is D.
Factor production that could be changed during particular period is called Variable Factor of Productions.
Basically, factor of productions is divided to fixed and variable factor.
FIxed factors are the one that will always stay the same no matter how many products you made. For example electricity cost, building rent, etc
The variable factors differ depend on how product you produce, such as raw material.
Answer:
no country uses military time they have different time zones
I believe the answer is: Tsarina Alexandra
Tsarina Alexandra is the spouse of Tsar Nicholas II , which was appointed as the temporary ruler when he took command of the battlefield. She was murdered along with her immediate family after refusing to conform to the will of the high Aristocrats within the kingdom.
For the monthly fee, we first have to subtract the installation fee of 85 from the total cost for two years which is 685. Why? Because an installation fee is a one time thing. You don't install every year. So less the installation fee, our internet service cost for two years is 600. To make things easier, lets get the service costs for one year. Divide 600 by 2 and you will get 300. 300 is the cost of the internet for a whole year. Divide this by 12 (12 months in a year) and you will get 25. The monthly cost is $25.