It would be a reflection across the x acess
Answer:

Step-by-step explanation:

Distribute:

Combine like terms:

-2r + 4 is your answer.
X to the power of 8
When dividing powers, you subtract the "small numbers". When multiplying, you add them. 3-(-5) = 8
Hope it helps!
To divide like bases just subtract the exponents
answer is 2^(13-3) or 2^10 or 1024
Answer: B) 18° C
Step-by-step explanation:
21+(-3) = 21 - 3
= 18