Part A:
We see that this pair of equations has 1 solution. On a graph, the solutions of 2 (or more) lines is where the lines intersect. In this case, since these lines intersect 1 time, they have 1 solution.
Part B:
As previously mentioned, the solutions of multiple lines is where the lines intersect. In this case, since they intersect at (4,4), that is the solution.
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:
4 ÷ 6/9 is also equal to 4 x 9/6. This is because when you divide by a fraction, you change the division sign to multiply and reverse the numerator and the denominator of the fraction. For example, if x/y was a fraction, it would become y/x. THIS IS ONLY DURING DIVISION!
So, we now that 4 ÷ 6/9 is equal to 4 x 9/6. 4 x 9/6 = (4x9)/6 = 36/6 = 6.
What are you converting it to/from?
Answer:
(a). and (b).
Step-by-step explanation: