Answer:
The first one is B
Step-by-step explanation:
if you count how many faces or sides it has its 5
Answer:
This is called system of equations.
Step-by-step explanation:
This combines two equations and then lines them up to a system.
(7,5) is the solution to this system.

so notice above, the circle is centered at h,k or 0,0, the origin, and has a ratio of 5.
and y = 2, is just a horizontal line, check the picture below.