Su = 15 !!!!!!!!!!!!!! chile i hope Im not wrong lol
Answer:
Step-by-step explanation:
Cross multiplication can be used but not in the beginning. First x should be isolated.

Now subtract
from both sides

In this stage, cross multiplication can be used.

Answer: 
Step-by-step explanation:
1. You have the following phrase given in the problem: 16 times as many books. You can conclude this is a multiplication word problem, because:
- Let's call
the number of books.
- "As many boooks" indicates multiplication.
- 16 times means that
should be multiplied by 16.
2. Then, you can conclude that the expression that best represent the phrase is:

The First Answer is 0.4 and the second answer is 0.75.
I would say c but that is just a guess