
The domain of given function is <u>All real numbers</u>

For each value of x the function is defined.
Example -
The value is 
The value is 4

Answer:
11 months
Step-by-step explanation:
185 - 20 = 165
165 ÷ 15 = 11
The value of f(5) is 
Step-by-step explanation:
The function is 
To find
substitute
in 

Multiplying the terms, we get,

Adding the terms, we get,

Thus, the value of
is 