[{"id": 1, "type": "multiple_choice", "options": ["4:6", "4:5", "2:6", "4:3"], "question": "If the ratio is 2:3, what is the equivalent ratio when multiplied by 2?", "correct_answer": "4:6"}, {"id": 2, "type": "multiple_choice", "options": ["x = 16", "x = 15", "x = 80", "x = 17"], "question": "Solve for x: 5x = 80", "correct_answer": "x = 16"}, {"id": 3, "type": "multiple_choice", "options": ["10:4", "16:4", "8:4", "16:2"], "question": "If the ratio is 8:2, what is the equivalent ratio when multiplied by 2?", "correct_answer": "16:4"}, {"id": 4, "type": "short_answer", "question": "Evaluate: 0 + (-4)", "correct_answer": "-4"}, {"id": 5, "type": "short_answer", "question": "Evaluate: -8 + (6)", "correct_answer": "-2"}, {"id": 6, "type": "multiple_choice", "options": ["8:8", "5:15", "15:5", "15:15"], "question": "If the ratio is 5:5, what is the equivalent ratio when multiplied by 3?", "correct_answer": "15:15"}, {"id": 7, "type": "multiple_choice", "options": ["6 square units", "4 square units", "4 square units", "8 square units"], "question": "What is the area of a rectangle with length 2 and width 2?", "correct_answer": "4 square units"}, {"id": 8, "type": "short_answer", "question": "Evaluate: -10 + (3)", "correct_answer": "-7"}]