Answer:
Third
Step-by-step explanation:
First would be, simplified, 2x+10=2x-10
Second, simplified, -2x-10=2x-10
Third, simplified, -2x-10=-2x-10
Fourth, simplified, -2x+10=2x-10
So it's third :)
hope this helps :D
Answer:
Well if a story is 14-16 feet tall, then it would be about 50 floors.
Step-by-step explanation:
Each story is 14-16 feet, and if you meet in the middle (15 feet) just divide 750 by 15, you get 50.
I believe it is 1500
(1920 - 420)
Answer: 
Step-by-step explanation:
This is what it is as a mixed number
= 
=
If you want it written in exponential form it would look like this:
Answer:
12*56-56+11=12
Step-by-step explanation:
12 for 56
