Answer:
I'm not sure I get the question.
Step-by-step explanation:
x + y = ???
I don't know what your questions means.
Maybe more context?
The coordinates of the vertices of the parallelogram, given that s is a units from the origin, Z is b units from the origin, and then length of the base is c units could be the following:
W(b+c, 0), Z(b, 0), S(0, a), T(c,a)
0.24
DONT KNOW SRY