Answer:
Mirror on the wall
Step-by-step explanation:
mirror on the wall
First you cross multiply.
2*(b-4)=6b
Then distribute the 2.
2b-8=6b
Minus 2b from each side.
-8=4b
Divide each side by 4.
-2=b
So -2 is your answer.
2mn + 4n² + 5m² - 7mn = 4n² + (2mn - 7mn) + 5m² = 4n² - 5mn + 5m²
Answer: C
Answer:
9000
Step-by-step explanation:
1,2,3,4 round down
5,6,7,8,9 round up
Look at the 100's column for rounding to the nearest 1000
