Just a few SQL problems

Actually just need 3-5 done. Pretty easy work but don't have time to complete.

1. Insert two records into the customer table containing the customer number and first and last names. Use the sequence for the customer number and names of your own choosing.
2. Alter the sequence to increment by 15 and add two more records. 
3. Select all records from the customer table to show the results of the four insert statements.