Answer:
m = -1/2
Step-by-step explanation:

Hope this helps.
Let, the amount of sales = x
Then, commission from sale will be: x * 0.02
So, Equation would be: 500 + 0.02x
Hope this helps!
Answer:
By continuing my education I increased my earning potential from $21,484 to $39,746 a year. That's a difference of $18262 a year.
If the additional education costs $18,000, then in one year it will pay for itself.