Two triangles are similar only if they share a congruent angle and two congruent sides adjacent to the angle. t/f explain plz

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

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

What is the slope of the line shown below?