In the figure below, S is the center of the circle. Suppose that JK=7,LM=7,NS=6,and PS=4x-6.Find the following.

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

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)