Emily has X marbles. Her friend gave her 7 more marbles. She now has a total of 12 marbles. How many marbles did Emily have originally?
Mrs. Keegan wrote down her student's quiz grades from Unit 2. Their results included: 58, 72, 88, 100, 65, 93, 81. Which number, if added to the dataset, would represent an outlier in the data?
