Answer: (2, -2)
Step-by-step explanation:

Answer:
50% off :)
Step-by-step explanation:
use the purple coupon to take off half of the whole price so you spend less overall. And the only requirement is that it needs to be over the price of 350 (originally) , so your item is eligible.
Answer:
Option B: x > 0
Step-by-step explanation:
Option A is wrong because
will be 0. So, the inequality can't be divided by 0.
Option C is wrong because 1 will suffice this inequality. 
Option D is wrong because any value in the root has to be greater or equal to 0 (otherwise, it's imaginary number). -1 will give the latter root a value of root-(-3).
Leaving us with only option B, which is the right answer.