4.5 feet is 54 inches, and 127cm is 50 inches, so 50+54=104inches
The answer would be D, because you do 4200÷56=75 minutes. 75 minutes= 1 hour and 15 minutes
By definition we have to:
A set has under an operation if performance of that operation on set members always produces a member of the same set; in this case we also say that the set is closed under the operation.
For this case we have the following polynomials:

Multiplying we have:

The product of two polynomials is also a polynomial.
Answer:
d
is a polynomial
Answer:

Step-by-step explanation:
