A new drug was tested on a group of 200 patients with high blood pressure. By the end of the trial period, 90 patients showed improvement from the drug, 35 patients developed side effects, and 95 patients showed no improvement and had no side effects. How many patients showed improvement and had side effects? I first tired to solve it by using a venn diagram but that got me know where because I didn't know what to do. Then, I thought that I would try to find the percentages of each of the given categories over 200, like 90 patients showed improvement from the drug/200 total patients to get 45% and then I did the same for the other two and found 17.5% developed side effects and 47.5% showed no improvement and no side effects but I was at a loss of what to do next. Can someone please help me? Thank you!