NEED HELP ASAP A medication has a half-life of 4 hours after it enters the bloodstream. A nurse administers a dose of 500 milligrams to a patient at noon.

Only answer if you know pls!!

Find the amount of medication, in milligrams (mg), remaining in the patient's body at: (Round to the nearest 10th)

a. 3 p. m. on the same day:

b. 8 p. m. on the same day:

2. The expression 500 x (1/2)^5/4 represents the amount of medicine in the body sometime after it is administered. What is that time? (Make sure to signify am or pm)

The federal reserve controls certain interest rates in the united states. investors often try to speculate as to whether the federal reserve will raise or lower rates and by how much. suppose a company conducts extensive interviews with financial analysts, and as a result, predicts that "thefed" will increase rates by an average of 0.25 percentage points every six months for the forseeable future. which type of equation could be used to model the predicted interest rates over the next several years, assuming no other significant changes? a) a linear equation b) a quadratic equation c) a polynomial equation d) an exponential equation