Answer:
slope=y2-y1/x2-x1
=-5+5/7-2
=0/5
=0
Step-by-step explanation:
Number of questions worth 5 points = 10
Number of questions worth 2 points = 25
Further explanation:
The given system is a system of linear equations in two variables.
We will use the subsitution method to solve the system
Given equations are:

From equation no 1:

Putting x=35-y in second equation

Hence,
Number of questions worth 5 points = 10
Number of questions worth 2 points = 25
Keywords: Linear Equations, Substitution method
Learn more about substitution method at:
#LearnwithBrainly
Parallel lines<span> are coplanar </span>lines<span> that do not intersect</span>
I think the answer is C-No solutions
Answer:

<h2>-1 is the right answer.</h2>