How much does it cost to mail a 6x9 padded envelope?

Related questions

1. Is it better to ship a large box or two smaller boxes?
2. Can I use any box for USPS Priority mail?
3. What is the largest size box USPS will take?
4. What is the current postage rate for 2019?
5. Is the price of stamps going up in 2019?
6. Is there a weight limit on USPS flat rate boxes?
7. Is it cheaper to ship UPS or USPS?
8. What is considered a large package for USPS?
9. How do USPS flat rate boxes work?
10. Where can I drop off USPS packages?

Tags

1. #additional
2. #class
3. #ounce
4. #ounces
5. #requires
6. #between
7. #weighing
8. #envelope
9. #weight
10. #stamp
11. #first