Question

please help me..
answer both questions I will mark as brainlist
steps compulsory​

Answer 1

Answer:

common difference t2-t1

-2-1= -3

an=3+4n

=3+4(1)

=3+4

=7

=3+4(2)

=3+8

=11

=3+4(3)

=3+12

=15

the sequence is 7,11,15,..