Part 1:
3,0,-2,7
Part 2:
A,C,D
(7, -2).
Reflection will remain the same distance with the symmetrical line.
This question is unanswerable. Wrong attachment. :(
You find the total of two numbers by adding them.
13.450 + 15.125 = 28.575
The total length of the two sheets of paper is 28.575 cm.