Answer:
Yes, it is a polynomial.
Step-by-step explanation:
Answer:
-x - 3y + z
Step-by-step explanation:
Think of a imaginary 1(-1 because of the sign) in front of the parenthesis and distribute it to the other number and so x will become -x, 3y will become -3y and -z will become z because two negatives make a positive.
The answer is D but i could be wrong
340.8 cm^2.
72+72+72+62.4+62.4=340.8cm^2.
