Need help. pls help. i suck at math. math is a no no for me. help me pls.

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

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?