Final answer:
To evaluate the expression, we simplify -8x(6+3) to -72, then add 390 to get 318. Finally, we divide 318 by 6 to get -53.
Step-by-step explanation:
To evaluate the expression -8x(6+3)+390 divided by 6, we need to follow the order of operations, which is often remembered using the acronym PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right).
In the given expression, we start by simplifying the expression inside the parentheses: (6+3) = 9.
Then, we perform the multiplication: -8x9 = -72.
Next, we add 390 to -72, resulting in 390-72 = 318.
Finally, we divide 318 by 6, giving us a final answer of 318/6 = -53.
Therefore, the correct answer is B. -53.
Learn more about Evaluating expressions