The degree of a polynomial is the highest power of the polynomial.
The polynomial is 
The degree is given as:

The zero is given as:

Add 3 to both sides

From the question, we understand that the polynomial has a single zero.
So, the polynomial is:

Substitute 4 for n

Hence, the polynomial is 
Read more about polynomials at:
brainly.com/question/11536910
Answer:
7.5in
Step-by-step explanation:
Answer:
The third response
Step-by-step explanation:
Start with d=rt. Now, solve for r by isolating it. since r is multiplied by t, divide both sides by t. d/t=r. So your answer would be the 2nd choice.