The main issue I see here is that your home page is primarily JavaScript. I would add some HTML content to that which relates to your keywords. The other two pages have more content, but I'd suggest adding more to the second URL that relates to the keywords there too. I don't think there's a "minimum" number of pages for AdSense by the way. So resubmit it after you make the above changes and hopefully it will be OK then.

One more thing to possibly consider regarding the second URL is hiding the "Read More" text. Since there's so sparse content there, you might as well make sure it's readable.

@dan how do i make sure whether it is readable or not?

I haven't looked at the code in detail, but if it's JavaScript that Google can't crawl, then the hidden text won't be seen. I think you just need to add enough content so that when people search for your keywords, Google can display ads that match the keywords searched on and your content.

@dan i plan to move the 2nd url content to the first url page and i will place it to just below the converter utility. What you say? is this good?

If it's visible to you, then it's visible to Google too. When you get content, you can use the Read More, but till then, you might just display all of it (without hiding any).

As long as you think that reflects what your site is about and contains content related to your AdSense keywords, then that's an option. Perhaps you should just write something more however so your site grows in unique content (always a plus).

@dan So did you mean that instead of read more link.. i should display all its content in the same page, without read more link?

That might be wise at this point. As Google indicated, it can't find enough content to support ads.

and instead of that link what topics you recommend to write?

are you here for chat?