Each task asks for an order. The check compares the order of your rows too.

1. The customers in the order they signed up, first signup first: name, then signup_date.
2. The employees, highest salary first: name, then salary.
3. The products from cheapest to most expensive. Two products have the same price: put the one with more stock first. Show name, price, then stock.
4. The customer names, sorted by city from A to Z. Show name only, not the city.
5. Think before you run it: Grace Okafor has no city. Where is her row in SELECT name, city FROM customers ORDER BY city DESC;: first or last?