Brian is the coordinator of a Regional Volleyball league. Eight teams must play each team once. How many games must Brian schedule for the volleyball season?
Sarah is setting up a display at her family's convenience store. She wants to stack cases of soft drinks in a triangle arrangement with 10 rows. There will be 1 case at the top, 2 cases in the 2nd row, 3 cases in the 3rd row, and so on. Sarah wants to know the number of cases she needs to get from the storeroom to set up her display.
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