Mathematics, 05.05.2020 09:00 crispingolfer7082

Sara runs a website that helps people learn programming. Every month, Sara receives a subscription fee of Dhs10 from each of the subscribers to her website. Last month, the website had 100 subscribers. This month, 30 new members joined the website, and 10 members canceled their subscription. How much money has she made those two months?

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Sara runs a website that helps people learn programming. Every month, Sara receives a subscription f...