What are anna's total daily energy needs based on her desired body weight and level of physical activity that will allow her to maintain her precollege body weight?

Anna's total daily energy needs based, on her desired body weight and level of physical activity that will allow her to maintain her precollege body weight is 1120.8 kcal/ day

Explanation:

The Basal Metabolic Rate or BMR is a measure of a person's ability to process energy per day. Essentially, BMR looks at how much energy a body may use in a 24 hour period by measuring the needed calorie intake.

BMR is measured via the equation:

This is the Mifflin-St Jeor formula, alternatively, the very similar Harris-Benedict Equation can be used; here, age, weight and height are the inputs required for the calculation. However, for this question we'll use the provided equation:

Anna's current weight= 121+15 lbs= 61.69 kg

...previous weight= 54.80 kg

Formula for women:

BMR (kcal/ day)= body weight in kg × 0.9 kcal/kg/ hour × 24 hours/day

         At her current weight = 61.69 kg× 0.9 kcal/kg/ hour × 24 hours/day

                                                =1332.5 kcal/ day

At her pre-college weight= 54.89 kg× 0.9 kcal/kg/ hour × 24 hours/day

                                                =1120.8 kcal/ day

And going further, it may be concluded that Anna needs to eat 211.7 less calories to attain her previous weight...

ans.

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thus, the correct answer includes options and f).