Answer:
its b
Step-by-step explanation:
its b i for some reason got it right
Unless unusually unusual unification under
A. you have to do the whole 30/2 i just had this on a test. GOOD LUCK
Answer:

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Work Shown:

You could expand terms out and simplify, but I think it's more handy to leave it in this form so you can easily spot the center and radius from a glance.
Answer:
13x^2 - 15x + 12
Step-by-step explanation:
Add like terms.
3x^2 + 10x^2 = 13x^2
-10x + -5x = -15x
4 + 8 = 12