Which expression is equivalent to 3a+9a+7b-b

4 puzzles in 3 hours

step-by-step explanation:

drive more conversions to your website

conversions are the outcome of your efforts. when a visitor sign up for any newspaper, or fill any form to order a specific product or when your page is shared on social media, all such attempts mean conversions of a website. whenever your desired action is fulfilled, the conversion rate of your website will increase. this increase in your conversion rate will prove that your website is   going well. it also confirms that the quality of your website’s marketing was really good.drive more conversion to your website       drive more conversions to your website

you'll just earn points here

step-by-step explanation:

i agree because i see the other persons thinking is clear