Question

5,10,15,20.......find a20​

Answer 1

Answer:

hope u understand........

Answer 2

Answer:

100

Step-by-step explanation:

let a=5

d=a2-a1

  =10-5

  =5

an=a1+(n-1)d

a20 =5+(20-1)5

     =5+19*5*

=5+95

=100