Answer:
p=7
Step-by-step explanation:
x1+x2=8
2x+6=8
2x=2
x=1
c/a=c
x1*x2=c=p
x1*x2=7
p=7
Answer:
A: (3,4)
B: (4,3)
C: (2,1)
Step-by-step explanation:
The first number in each coordinate is the x value, which is the number of units you go across starting from the origin
The second number in each coordinate is the y value, which is the number of units you go up starting from the origin
If we consider it as a combination problem, then we could calculate the how many combinations are there if we pick up three nodes out of six nodes, and then we have:

And the answer should be 20