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Final answer:To calculate the approximate Basal Metabolic Rate (BMR) for a sedentary man weighing 180 lbs, first convert the weight to kilograms, then multiply the weight in kilograms by 1 calorie per hour, and finally multiply the calculated BMR by 24 to get the BMR per day. Additionally, add 200 calories per day between serving sizes and portion sizes for a sedentary individual.Explanation:The approximate Basal Metabolic Rate (BMR) for a sedentary man can be calculated using the formula: 1 calorie per hour for every kilogram (2.2 lbs) of body weight. To calculate BMR for a 180-lb (81.6 kg) man, we need to convert the weight to kilograms first. This can be done by dividing the weight in pounds by 2.2: 180 lbs ÷ 2.2 = 81.6 kg.Now, multiply the weight in kilograms by 1 calorie per hour: 81.6 kg × 1 calorie per hour = 81.6 calories per hour.Since there are 24 hours in a day, multiply the calculated BMR by 24: 81.6 calories per hour × 24 = 1958.4 calories per day.Additionally, for a sedentary individual, it is recommended to add 200 calories per day between serving sizes and portion sizes. Therefore, the approximate BMR for a 180-lb sedentary man over a 24-hour period is 2158.4 calories per day....