Use the chart to multiply the binomial by the trinomial. The expression (y + 3)(y squared minus 3 y + 9) is shown above a blank table with 3 columns and 2 rows.

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

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Which of the following is not a subset of {1,2,3}?