B. A coin is balanced as long as the probability of each outcome is closer to 0.5 than it is to 1 or 0.
Neither of the others seem like a suitable answer
Answer:
first option
Step-by-step explanation:

6.8 + 8.75 = 11.55
Dan collected a total of 15.55 pounds of aluminum.
-6q^2 + 4q^2 + 8q - 9a^2
Combine like terms:
-2q^2 + 8q - 9a^2
You cannot combine q^2 to q because they do not have the same number of exponents!
The answer is C.(-2,3)<span />