BMI = Weight (kg)Height (m)2

Here are the solutions to your questions: 5.3.1 a) Step 1: Write down the given formula for BMI. BMI = Weight (kg)Height (m)^2 Step 2: Substitute Judy's weight and height into the formula. Judy's weight = 75 kg Judy's height = 1.8 m BMI = (75)/((1.8)^2) Step 3: Calculate the square of the height. BMI = (75)/(3.24) Step 4: Calculate the BMI. BMI ≈ 23.1481 Step 5: Round the BMI to the nearest ten. 23.1481 is closer to 20 than to 30. BMI ≈ 20 Judy's BMI is 20 b) Step 1: Use Judy's calculated BMI (approximately 23.15 before rounding to the nearest ten, or 20 after rounding) and refer to TABLE 3. Step 2: Locate the range for the BMI. A BMI of 23.15 (or 20) falls within the range of 18.5 - 24.9. Step 3: Identify the corresponding weight status from TABLE 3. Judy's weight status is Normal 5.3.2 Step 1: Refer to TABLE 3 for Thulani's BMI of 26. Step 2: Locate the range for the BMI. A BMI of 26 falls within the range of 25 - 29.9. Step 3: Identify the corresponding weight status from TABLE 3. Thulani's weight status is Overweight 5.3.3 Step 1: Calculate Thulani's weight using her height and BMI. Thulani's height = 1.6 m Thulani's BMI = 26 Rearrange the BMI formula to solve for weight: Weight = BMI × Height^2 Weight_Thulani = 26 × (1.6)^2 Weight_Thulani = 26 × 2.56 Weight_Thulani = 66.56 kg Step 2: Determine the difference in weight between Judy and Thulani. Judy's weight = 75 kg Difference = |Weight_Judy - Weight_Thulani| Difference = |75 kg - 66.56 kg| Difference = 8.44 kg The difference in weight between Judy and Thulani is 8.44 kg 5.3.4 Thulani is currently overweight (BMI of 26). To maintain a normal weight status (BMI between 18.5 and 24.9), she needs to reduce her weight. Engage in regular physical exercise. That's 2 down. 3 left today — send the next one.