hey avani

 

referring a friend u'll get a nickel

 

if ur friend registers u'll get 4 more

 

asking the expert panel makes u lose 2 nickels

 

discussing with the community is without  using any nickels

 

study material u can see for reference and there are many problems

 

u must answer the questions asked and u'll get points as altitude if ur answer's good

 

and what's more u want