Answer:
500
Step-by-step explanation:
Answer:
1.9 is greater than 1.39 if that's what your asking?
Answer:
B=9 (I'll solve right now, just so you get the answer)
Step-by-step explanation:

Expand right side by distributing

Use the FOIL method to simplify (first, outside, inside, last):


Simplify

Re-insert

Cancel out 

Move all terms to one side

Simplify

Factor out the common term 2

Answer:
-4a +22b
Step-by-step explanation:
add the ones with same variable