Please capitalize where necessary: 4:9 lament, mourn, and weep. let your laughter be turned to mourning, and your joy to gloom.
A: 4:9 Lament, mourn, and weep. Let your laughter be turned to mourning, and your joy to gloom.

Q: support the project by sending the following request to your own mailing list.

A: Support the project by sending the following request to your own mailing list.

Q: translation of the website - uber pool
A: Translation of the website - Uber Pool

Problem: at that time there was no mathematical theory of probability - only a collection of small computational problems.
Can you repeat this sentence, but capitalize it?
Answer: At that time there was no mathematical theory of probability - only a collection of small computational problems.

Text: beautiful vintage carafe / decanter. hand blown glas with a blueish tint.

Correct capitalization: Beautiful vintage carafe / decanter. Hand blown glas with a blueish tint.

Text: to begin your free file analysis, simply drag-and-drop your x3dv file inside the dotted lines below, or click "browse my computer" and select your file.

Correct capitalization:
To begin your free file analysis, simply drag-and-drop your X3DV file inside the dotted lines below, or click "Browse My Computer" and select your file.