I don`t know what to put the fill in gap to make this program work

Question

int x; x=4+6; cout<<x__endl

Answer 1

just add '<<' again

cout<<x <<endl;

Answer 2

Just Type in <<

Answer 3

<<

Answer 4

<<.. insertion operator

Answer 5

<<

Answer 6

cout <<x << endle;.... insertion operator.

Answer 7

<<