Let x, y be numbers.
The addition identity property states that 0 + x = x.
The commutative property states that x + y = y + x
The result is x^2 +x +4 -21/(x+3).
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Polynomial long division tends to be easier than numerical long division because the quotient term never needs adjustment. It is always the ratio of the highest degree terms of the dividend and divisor.
See the attachment for the intermediate steps.
Answer:
D.By finding the unit rate and multiplying it by 7.
Step-by-step explanation:
Answer:

Step-by-step explanation:
There are 24 hours in 1 day, thus 15 hours is
=
of a day in simplest form