Its the second answer because it's the only one with o closed circle
Answer: y=40x+100
Step-by-step explanation: it’s growing by 40 every week so x=number of weeks and 100 is the starting point so you always add that. Ex) week 3: 40(3)+100 = 120+100=220
The correct answer is B. 3 meters
hope this helps!=-)
Using an exponential function, it is found that the half-life of the substance is of 5.23 units of time.
<h3>What is the exponential function for the amount of a substance?</h3>
The function is given by:

In which:
- A(0) is the initial value.
- k is the exponential decay rate.
The parameters are given by:
A(0) = 48, k = 0.1325.
Hence the equation is:

The half-life is the amount of time for which A(t) = 0.5A(0) = 24, hence:






t = 5.23.
More can be learned about exponential functions at brainly.com/question/25537936
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Step-by-step explanation:
or alternative answer is 1.818181...