The answer to question 5 is -3.
The answer to question 9 is -5.<span>
</span>The answer to question 7 is 28x^3y^4.
The answer would look something like this:

There could also have a simplified version.
I hope this helps.
The significant figures of 6.07 are 3 significant figures.
Answer:
1. A=56.25
Step-by-step explanation:
sry but i dont know the answer to six