This dot plot is symmetric, and the data set has no extreme values. 4 5 6 8 910 Which of these measures is the best measure of variability for the dot plot? A. Interquartile range (IQR) B. Mean C. Median D. Mean absolute deviation (MAD)​

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

Anyone know? will mark brainliest if you're correct!

Need so much on this one how many yards?