IN: What happens next?

How to start a thank you letter
Start with a basic header.
It's hard to go wrong with a simple " dear susan, " as the introductory address of your message. If for some reason this feels inappropriate, it's also acceptable to simply begin with a name.

OUT: The most important thing is that the recipient be able to see right away that the letter is intended for their eyes. Though they're a more traditional method of correspondence, thank-you letters aren't inherently formal, so there's no need employ overly proper language.

IN: What happens next?

How to calculate a ph
Know what ph actually is.
The ph is the concentration of hydrogen ions in a solution. A solution with a high concentration of hydrogen ions is acidic.

OUT: A solution with a low amount of hydrogen ions is basic, or also known as alkaline. Hydrogen ions, also known as hydronium, are written shorthand as h or ho.

IN: What happens next?

How to use headphones on an iphone 7
Locate your iphone's lightning port.
While the 3.5 millimeter headphone jack is gone, the traditional charging port--also known as the lighting port--is still at the bottom of your phone. You'll plug your lightning headphones cable into this slot.

OUT:
Plug your headphones into the lightning port. These should fit into the lightning port the same way your iphone 5 or 6 charger does.