Answer:
My own answer to your question is x=10
You can see 84.78 as
.
So, you can see the problem as 
First, multiply all the numerators together and all the denominators together.
You end up with 
=33.912
Answer:
Each answer correct is 5 points so Doug got 40 points.
Step-by-step explanation:
There is no picture with this so I don’t know how to answer this