Count how many posts in category

This is what I’m trying to do: if number of posts is greater than 20 -> display link to another page (which shows all posts) if number of posts is less than 20 -> don’t display the link So far I’ve been able to return the number of posts using $count_posts = wp_count_posts(‘inventory’); $published_posts = $count_posts->publish; but I don’t know where to go from here, any suggestions? Source: