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
Martin Luthor wrote this to the Archbishop of Mainz & Magdeburg objecting the selling of indulgences he was just trying to question the nature of the church practices at the time rather than confronting the entire institution.
Hope this helps you
Answer:
President James Monroe and President Theodore Roosevelt shared which of the following foreign policy viewpoints? Latin America should be a particular region of focus for the United States. Trade between the United States and other nations should be limited.
Explanation:
Answer:
the african americans did not get as much rights as other people because they were treated different
Explanation:
