Forum Moderators: open
do search engine take much notice of them? can i remove them, if i did what would happen?
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
Declaring the charset is vital, either in a meta tag such as the one above or as an HTTP header if you are producing dynamic pages. You should not remove this meta tag.
As for the other two, they are simply a waste of bandwidth and should be removed.
You might also want to consider putting your page through the HTML validator [validator.w3.org] if you are not already doing so: it is a good way of ensuring you are producing good, readable markup.
The first meta tells the browser what character set to use, that tells the browser what characters are allowed and how each is encoded. You can get away without one, but with the web being as international as it is, it's always best practice to include it.
More than you want to know, but here's the W3C blurb on HTML Document Representation [w3.org].