Try running this script, I hope it is self-explanatory, if not, please ask!

#!/usr/bin/env perl
use warnings;
use strict;
use Test::More;

# I need to print a blank in a file if the price field is
# less than 55.
is output(54,'title'), "\n";
is output(54,'electric'), "\n";

# I also need the output to be blank if the price field is
# greater than 55 but the title field contains the word "electric."
is output(56,'the electric title'), "\n";

# If the item is greater than 55 without the word electric
# in the title, I need the phrase "free_batteries" to be output.
is output(56,'title'), "free_batteries\n";

# what about these two?
is output(55,'title'), "free_batteries\n";
is output(55,'electric'), "\n";

sub output {
    my $price = shift;
    my $title = shift;
    if ( $price < 55 || $title =~ /electric/ ) {
        return "\n"
    }
    else {
        return "free_batteries\n";
    }
}

done_testing;
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