Question 9 answer is 0.375
Question 10 answer is 0.03125
Add 5 to 5, or multiple 5 by 2.
For this case we must factor the following expression:

Rewriting the expression:

We factor using the formula of the square difference:

Where:

So:

From the second term we have:

Finally, the factored expression is:

Answer:

Answer would be -4 5/12
Hope that helps.
Answer:
28 is the answers of the question