Only reason for no google ads may be non-acceptance of your application for publishership by google. You can verify it from your affiliate account. If status is active it means google ads are being displayed on your hubs. You may find ads being displayed on your hubs even if you don't have an adsense account. These ads are being displayed for hubpage for its share or for the hubber under whom you have signed. You are here for 12 months and have only 7500 hits. Usually it takes 3-4 months for most of the hubbers to have some income from hubpages. With 7500 hits, you may expect 70-75 clicks and your share of clicks should be 40-45. Have patience and try to improve your hub traffic and your hubber score though hubber score is in no way connected with your income. As per google's policy, publishers can not disclose their income, nor they can openly discuss about other parameters like eCPM etc. That could be the reason for removal of your question alongwith answers.