Adriano runs a website that helps writers write better stories. Every month, Adriano receives a subscription fee of \$5dollar sign, from each of the subscribers to his website. The website had 200 subscribers last month. This month 40 new members joined the website and 10 members cancelled their subscription.
First figure out how many subscribers he had. In this case, it's 200+40-10, which is 230. Then, multiply that number by 5 to get the amount of money made. In this case, it's $1150.
