Using an exponential function, it is found that the multiplier used to predict the amount of medication remaining 2 hours after the peak level is of 0.6889.
<h3>What is an exponential function?</h3>
A decaying exponential function is modeled by:

In which:
- A(0) is the initial value.
- r is the decay rate, as a decimal.
In this problem, we have that the decay rate is of r = 0.17, hence:

After 2 hours, the multiplier is given by:

More can be learned about exponential functions at brainly.com/question/25537936
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The area of the square can be expressed as

So to go back to the side length, you just need to find the square root of the area.
Answer:
A- Mother Nature
Step-by-step explanation:
Mother Nature= $.40 per pound
That is better than all others