Slope is -3 and y-intercept is 9
Answer:
diffusion
Step-by-step explanation:
Diffusion is the movement of particles from an area of high concentration to an area of low concentration
The explicit formula of the function d(n) is 
<h3>How to determine the explicit formula?</h3>
The function is given as:
d(1) = 2.7
d(n) = d(n-1) x (6.1)
The above means that the function is an exponential function, and it has the following parameters:
First term, d(1) = 2.7
Common ratio, r = 6.1
The explicit formula of an exponential function is:

So, we have

Hence, the explicit formula of d(n) is 
Read more about explicit formulas at:
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Substitute the value of the variable into the equation and simplify.
There for your answer is 10
Answer:
$50.84
Step-by-step explanation:
By multiplying $3.28 × 15.5 = $50.84