Answer:
Function: 
Domain: 
Step-by-step explanation:
Given
Registration Fee = 150
Entrants = 50 (maximum)
Solving (a): Create a function
Let the number of entrants be x.
If 1 entrant pays 150, then x entrants will pay 150x.
So:

The minimum entrant is 0 (i.e. no entrant shows up) and from the question, the maximum is 50
So, the domain can be represented as: 
Hence, the function is: 
(b) : The domain
The domain has been described above as:
<em>"The minimum entrant is 0 (i.e. no entrant shows up) and from the question, the maximum is 50"</em>
<em>"So, the domain can be represented as: </em>
<em>"</em>
Hi. I am adding an image that shows step-by-step how to solve these types of questions. I hope it helps.
Take care,
Diana
In ancient times it took 2 years
Answer: 2 sqr 3
Step-by-step explanation: Just did it
Answer:

Step-by-step explanation:
A polynomial is the sum or difference of one or more monomials. A monomial is a constant, a variable, or the product of constants and variables. It does not include negative exponents.
The first choice is a polynomial because the only terms are variables with positive exponents and constants.
The second choice is a polynomial because the only terms are variables with positive exponents and constants.
The third choice is not a polynomial because the first term has a negative exponent.
The fourth choice is a polynomial because the only terms are variables with positive exponents and constants.