write an ap whose common difference is 7 what is the 17 term? what is n term

Answer 1

if the first term is 456, then the 17th term is 456+7*16

Tn = 456 + 7(n-1)

Answer 2

if the first erm is 1,the the a.p is:
1,8,15,22......
to find 17th term :
a+(n-1)*d
1+(17-1)*7
1+16*7
1+112
=113