1. Go ahead and email us your login details so that we can get in and take a look:
2. Depends on what kind of pages you mean. Are you referring to WordPress Pages (https://support.wordpress.com/post-vs-page/) or web pages in general?
3. Install https://wordpress.org/plugins/all-in-one-seo-pack/, it’ll automate most of this for you.
4. Referring back to 3 optimizing your SEO will allow you to take some control over your appearance in search engines. Joining https://www.google.com/webmasters/ will help additionally, but ultimately Google will decide the best appearance for your pages in its index. Please note that when you make updates Google will not automatically show the changes. It can take about a week.