Please help

1. It is true because if you take off the n's and then do it you get 7 and when you add the n's back on that is your answer 2. It is true because even if you put parentheses you still get the same answer 3.What is in the parentheses equals 0 and 5 - 0 is 5 4. You get the same answer even though the 6n and 2 are flipped flopped.

Step-by-step explanation:

start with a line segment pq that we will copy. mark a point r that will be one endpoint of the new line segment. set the compasses' point on the point p of the line segment to be copied. adjust the compasses' width to the point q. the compasses' width is now equal to the length of the line segment pq.

step-by-step explanation: