What is | -3 + 9| a. -12 b. 12 c. 6 d. -6

The answer is C, 6. Because -3+9 is 6, and the absolute value of 6 is 6

You see, the |x| symbols mean that whatever negative term inside will be switched to positive. But they are the lowest priority. so first solve -3 + 9 = 6. The absolute value of 6 is 6.

option 1

data plot with   3 dots over 33, 1 dot over 34, 2 dots over 35, no dot over 36, 1 dot over 37, 2 dots over 38, 4 dots over 39, and 2 dot over 40.