The number of terms n is 7.
<u>Explanation:</u>
Given that:
First term a=21
nth term 
=39
Sum up to n terms 
=210
To Find:
The number of terms n in the arithmetic progression.
Formula to be used:
Sum up to n terms Sn is given by the expression
Solution:
Number of terms n in the given series is n=7
Answer:
A parliamentary system or parliamentary democracy is a system of democratic governance of a state (or subordinate entity) where the executive derives its democratic legitimacy from its ability to command the confidence of the legislature, typically a parliament, and is also held accountable to that parliament. VIA Wikipedia
Explanation:
Answer:
It gave them more strict possiblity of being
strict of people around them
Hi! The three
characteristics of Tenochtitlan that Cortés admired were (1) the city’s
richness in terms of having a great marketplace, (2) its land area; the wide
streets and canal systems, (3) their infrastructure – he mentioned the high towers,
buildings and temples.
It means that, in different classes, what for someone in one class is labor or work because he or she is doing those duties, for someone in another class that can be his or her poperty because he or she is the employer and owns the resources or products that other people are working on. And when it comes to express the idea in the same class, it means that no matter what is the position of every person, they treat each other as family and they trust each other, something that, if we were talikng about the matters of poperty and labor in different classes, it would not being happening.
