When responding to questions in an email, you can begin by referring to the questions asked and the answers you've provided.
Thanks for sending me your questions.
I've provided answers to your questions below.
In answer to your first question, HR deals with the bonus system.
The answer to your question about holidays is that they increase by one day per year.
Addressing your last question, pay is decided by your manager.
Here are some details about our company culture.
Regarding our contract, it's divided into two sections.
From: efstudent@bigcompany.com
Subject: Your questions about the company
Hi, Jessica.
Thanks for your email. I've provided answers to all of your questions.
The answer to your first question about the environment is that it's a pretty serious work atmosphere. All employees have to wear business attire every day, and everyone has their own cubicle. In answer to your final question about work-life balance, most people here work 40 hours a week, more or less. I get about three weeks' vacation each year. And yes, people here do socialize together sometimes. The area around the office is great for eating and shopping, and there are plenty of places to have lunch.
See you soon!
Alex