Write a SQL query to sum the number of rides and deliveries completed for each zip code using the given dataset.

SELECT zip, SUM(rides) AS total_rides, SUM(deliveries) AS total_deliveries
FROM your_table_name
GROUP BY zip;

This query aggregates ride and delivery counts by zip code. SUM(rides) calculates the total rides for each zip code, and SUM(deliveries) does the same for deliveries. The GROUP BY zip clause ensures these sums are calculated independently for each unique zip code.