Question

Find the specified term for each arithmetic series.
1. a=4, d=4,. And Sn=40,. n=____
2.a¹=10. an=-8. And Sn=9. n=____
3.a¹=-7. d=8. And Sn=225. n=____
4.a¹=16. d=3 And Sn=51. n=____

Answer 1

Answer:

1.10

2.5

3.3

4.2thois is your answer I hope that you understand my questions