Slumbertec is a sleep medication designed for patients with severe insomnia. The follow function is a pretty good measure of the dosage a patient needs depending on their weight: d=2w-60 where w represents the patient's weight in pounds, and d represents the dosage required in milligrams (mg). a. Under the function equation above, label the meaning of the variables d and w b. Evaluate 2w-60 when w=140. c. When w=175, the value of 2w-60 is 290. Explain what this means in the context of this function. In other words, what does this tell you about the patient and this medicine? d. Evaluate 2w-60 when w=25. Explain what this means in the context of this function. Your patient was prescribed 260 mg of Slumbertec by another doctor. What would you guess was the patient's weight at the time when the prescription was written? I