Answer:

Step-by-step explanation:
The angle on a straight line is always 180 degrees.
Thus,

Remove the brackets:


Subtract 24 from both sides:


Divide both sides by 12:


Answer: Im pretty sure its C
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
First, factor the original expression:
As we can see, D is the same as above. Eliminate D.
Go through each of the answer choices.
A:
This is equivalent to what we factored. Eliminate A.
B:
This is again equivalent to what we factored. Eliminate B.
C:
This cannot be simplified and it is not equivalent to what we have previously. C is not the equivalent expression.
Answer: 2.4×10^5
Step-by-step explanation:
30×8×10^3
First multiply and forget about ×10^3 for now:
30×8 = 240
Then add back the ×10^3:
240×10^3
Then simplify:
2.4×10^5
To check the answer:
30×8×10³=
30×8000= 240000
Then simplify:
240000 = 2.4 ×10⁵