File:///home/chronos/u-fa676ffc04a9 9767550a303112fed9a8fe2cb499/MyFile s/Downloads/Course%20Activity_%20Si des%20and%20Angles%20of%20Congruent %20Triangles. pdf can you help me solve this confusing questoin thanks

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

Which expression gives you the distance between the points (5,1)and(9,-6)

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with