It's an easy problems. what equations are you trying to find?
Answer:

Step-by-step explanation:

Add the fractions since the denominators are the same.


Simplifying the fraction.


Answer:
It's the chemical because they have to work with dangerous stuff.
Answer:
1. tax deductions 2. the one that isn't amount of tax owed
Step-by-step explanation:
got the first part right and reviewed it on plato to see that The amount of tax owed is not the right answer.