<u><em>The additive identity property </em></u>. . . is being used here because no matter what the value is, whenever you add zero (0) to it, you'll always get the value your started with.
Answer:

Step-by-step explanation:

the first side is
twice x
2 times x
the symbol means less than or equal to
and finally we have the -18
Answer: -5.27 + (-3.32) = -8.59 and -5.6 + 27.4 = 21.8
Step-by-step explanation: Have a nice day bro!✌️
Answer:
C. A pod of humpback whales
The scientists is trying to draw a conclusion about all humpback whales by looking at the behaviors of a pod of humpback whales.
Answer:
x = 9
Step-by-step explanation:
First step, divide both sides by pi to get rid of it entirely; you should be left with x - 8 = 1 (because when you divide a value by itself, you always get 1, so pi divided by pi gives you 1)
Second step, add 8 to both sides, leaving you with x = 9