[{"id": 1, "type": "short_answer", "question": "What is 40% of 70?", "correct_answer": "28"}, {"id": 2, "type": "multiple_choice", "options": ["12 square units", "35 square units", "42 square units", "24 square units"], "question": "What is the area of a rectangle with length 7 and width 5?", "correct_answer": "35 square units"}, {"id": 3, "type": "multiple_choice", "options": ["20:30", "20:6", "4:30", "9:11"], "question": "If the ratio is 4:6, what is the equivalent ratio when multiplied by 5?", "correct_answer": "20:30"}, {"id": 4, "type": "short_answer", "question": "Evaluate: -6 + (-5)", "correct_answer": "-11"}, {"id": 5, "type": "multiple_choice", "options": ["x = 6", "x = 40", "x = 5", "x = 4"], "question": "Solve for x: 8x = 40", "correct_answer": "x = 5"}, {"id": 6, "type": "multiple_choice", "options": ["48 square units", "150 square units", "24 square units", "140 square units"], "question": "What is the area of a rectangle with length 10 and width 14?", "correct_answer": "140 square units"}, {"id": 7, "type": "short_answer", "question": "What is 40% of 50?", "correct_answer": "20"}, {"id": 8, "type": "short_answer", "question": "What is 80% of 130?", "correct_answer": "104"}]