The degree of a polynomial is the value of the highest exponent a variable is raised to (i.e., the degree of the equation

is 2, since the highest exponent of a variable is 2.
If we apply this concept to your list of polynomials, we see that polynomial A and polynomial D both have

terms, so they are both fifth-degree polynomials. However, your answer must also be a trinomial (a polynomial with three terms.) If we look at polynomials A and D, we see that only polynomial A has three terms, so that must be the answer!
Let me know if you have any questions :)
The equation of this problem is y=mx+b, so this problem is y=1/2x+3
6 feet = 72 inches
1 inch = 2.54 centimeters
72 * 2.54 = 182.88 cm which equals
1.8288 meters
Here is the answer with explanation
f(x) means x = -2 if you multiply 1/2 by -2 you get -1