B the plane has only one dimension
ANSWER
The solution set is (4,6)
EXPLANATION
The first equation is

The intercepts are:
(0,18) and (6,0).
We plot the intercepts and draw a straight line through them.
The second equation is,

This equation also passes through,
(0,0) and (1,1.5).
We plot this point too and draw a straight line through them.
The two straight lines intersect at (4,6).
See graph.
Hence the solution set is (4,6).
Answer:x•0.70=y
Step-by-step explanation:
2x + 2x + 40 = 180
4x = 180
X = 180/4
X= 45