Answer: 
Step-by-step explanation:
Get rid of parentheses: 
Add all the numbers together, and all the variables: 
Move all terms containing x to the left, all other terms to the right:



Answer:
2x^2+7x-3
remainder is -4
Step-by-step explanation:
Check the image
Answer:
A. 85°
Step-by-step explanation:
By intersecting chords theorem:



Answer:
C. 2/3
Step-by-step explanation:
Answer:
It's the chemical because they have to work with dangerous stuff.