How much does it cost to e-mail a 9 x 11 envelope beside two pieces of 8.5 x 11 inside of it?
Answers:
Check the post bureau website. www.usps.com
41 cents I infer
80 cents if it's 1 oz, or 97 cents if it's 2 ozs. (more promising as the envelope will weigh a lot) because the envelope is oversized.
You can other check on USPS.com for correct postage