One solution.

If we can solve for the value of x. Then the solution would be one only for system of linear equations.
For your information, When the equation is true or rather say that both sides are the same, the solution will be infinite.
When the equation is false or rather say that both sides have different number or value then there won't be any solutions.
P = 198 cm
P/5 = 198 cm/5
P/5 = 39.60 cm
I believe this is the perimeter of one of the 5 congruent rectangles.
1. B and D
2.A
I hope this helped, woof.
The answer is B because the bottom has to be supplementary to 180 degrees because their supplementary angles