Course of Raku / Essentials / Scalar variables / Declaration with initialization

Quiz 1: Declaration with initialization

Fill the missing parts of the program to declare and initialise the variables.

=	my $radius ␣ 6378; # km
my	␣␣ $population = 8; # billion
my $ =	␣␣ ␣age ␣ 4.5; # billion years