Final answer:
To estimate BMR, convert the weight to kilograms and raise it to the power of 0.75. Then, multiply the result by the constant factor of 300. Therefore, Lauren needs approximately 1116.67 calories for basal metabolic processes.
Step-by-step explanation:
The basal metabolic rate (BMR) is the amount of calories a person needs for basic bodily functions while at rest. To estimate BMR, we can use a formula that takes into account weight, which is 0.75 when expressed in kilograms. However, the given weight of 120 pounds needs to be converted to kilograms and then raised to the power of 0.75. Once we have the weight in kilograms, we can calculate BMR by multiplying it by the constant factor of 300.
Let's convert 120 pounds to kilograms: 120 pounds x 1 kg / 2.2046 pounds = 54.43 kg.
Now, we can calculate BMR: 54.43 kg^0.75 = 1116.67.
Therefore, Lauren needs approximately 1116.67 calories for basal metabolic processes.