3 * 7 = 21, so

Then

and you can rationalize the denominator to write this as

Answer:
Part a: janice
part b: difference of 3 dollars in hourly pay
Step-by-step explanation:
Divide the amount each person was paid by the hours they worked to find their hourly pay
48 divided by 4 = 12
84 divided by 7 = 12
108 divided by 9 = 12
janice Makes 15 dollars an hour
The polynomials can´t contain:
-Variables in the exponents of the terms.
-Variables in the denominator.
- Negative exponents.
-Fractionals exponents.
-The variables cant be as radicals.
Therefore:
a) It is a polynomial (The variable is under a radical)
b) It is not a polynomial.
c) It is a polynomial.
d) It is not a polynomial. (It has a variable in the denominator).
e) It is a polynomial.
f) It is not a polynomial. <span> (It has a </span><span>variable in the denominator).</span>
Answer:
r=c/2π
Step-by-step explanation: