Casey correctly wrote and solved a system of linear equations by substitution. in his work, he submitted an expression for one variable and solved for the other. this resulted in the equation 5=20. what can casey conclude?

Inconsistent equations  

Step-by-step explanation:

Casey's system of equations is inconsistent. They have no solution.

A graph of his two equations would consist of two parallel lines, something like in the diagram below.

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers