Can an iphone user see when an android user is typing

How can you tell if someone sent you a text message to your email instead of a email

What are two ways to access the options for scaling and page orientation? click the home tab, then click alignment, or click the file tab. click the file tab, then click print, or click the page layout tab. click the page layout tab, or click the review tab. click the review tab, or click the home tab?

Explain the importance of html in web page designing in 20 sentences..