The answer is B. I hope this helped :)
Answer:
The item costs $900 after the 90% off.
Step-by-step explanation:
After the 90% off discount, the item costs (100% - 90%) the cost of the original price.
Hence, 


Hope this helped!
Answer:
A
Step-by-step explanation:
The vertex of a parabola lies on the axis of symmetry.
Answer:
answer is 111
Step-by-step explanation:
The answer is all real numbers for x
because simplifying, you get both sides are equal