Answer:
Associative property of addition
Step-by-step explanation:
its the same order only the () move
It depends, if the two sides given are adjacent to each other then yes. but you are given two opposite sides then no, because you don't know the length of one of the sides, thus not being able to calculate the perimeter
B. X,2X,3X cuz the sum of X and 2X is 3X
X is equal to 440
440/8=55