Answer: a
Step-by-step explanation:
84,000,108 is in standard
Answer:
2a+8 (square root b)................. third option
So :

?
First, you want to bring everything together on the top of the fraction.
12=24/2 so you can have

Add like terms -- 12 +24 = 36

Now we are at

Which is the lowest possible simplified version while remaining at exact value.
Feel free to check my math! I kinda did this off the top of my head.
Answer: 115 - (-30) = 115 + 30 = 145 degrees change
Step-by-step explanation: