Answer:
-3456
Step-by-step explanation
2.4x-4.4
Step-by-step explanation:
The first step to simplify this expression is to expand the terms in parenthesis
50?
I'm assuming 50 because the angles to a triangle always adds up to 180 and this one has 130 and 130+50=180
B, because it's pretty much 3+ and 3- so in result 0