Fill in the blanks in the following table, given that a is the first term, d the common difference and an the nth term of the A.P.
a
d
n
an
I
7
3
8
…...
II
− 18
…..
10
0
III
− 3
18
− 5
IV
− 18.9
2.5
3.6
V
3.5
105