Answer:

Step-by-step explanation:
The given functions are
and
.
We now composed the two functions to find:




This function is defined if the denominator is not zero.


We write this in interval notation as:

We need to be cautious here as x=0 is not in the domain of g(x).
Therefore the domain of
is

All you do is 2.5 times the number of feet so 2.5x , x is the number of feet
Answer:
$39,851.25
Step-by-step explanation:
If the sales increase at a rate of 9% per year, this means it will be 109% of the previous year's value since 100% + 9% = 109%
109% in decimal form = 109/100 = 1.09
Therefore, the exponential function is:
, where
is the number of years
So when
,

After 8 years, annual sales = $39,851.25
Answer:
312 784
Step-by-step explanation:
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