[{"id": 1, "type": "short_answer", "question": "Evaluate: -1 + (7)", "correct_answer": "6"}, {"id": 2, "type": "short_answer", "question": "What is 50% of 20?", "correct_answer": "10"}, {"id": 3, "type": "multiple_choice", "options": ["48 square units", "13 square units", "42 square units", "26 square units"], "question": "What is the area of a rectangle with length 6 and width 7?", "correct_answer": "42 square units"}, {"id": 4, "type": "multiple_choice", "options": ["6:4", "3:4", "5:4", "6:2"], "question": "If the ratio is 3:2, what is the equivalent ratio when multiplied by 2?", "correct_answer": "6:4"}, {"id": 5, "type": "short_answer", "question": "What is 50% of 130?", "correct_answer": "65"}, {"id": 6, "type": "true_false", "question": "The square root of 16 is 4.", "correct_answer": "True"}, {"id": 7, "type": "multiple_choice", "options": ["99 square units", "110 square units", "40 square units", "20 square units"], "question": "What is the area of a rectangle with length 11 and width 9?", "correct_answer": "99 square units"}, {"id": 8, "type": "multiple_choice", "options": ["26 square units", "14 square units", "28 square units", "24 square units"], "question": "What is the area of a rectangle with length 2 and width 12?", "correct_answer": "24 square units"}]