Answer: To increase an amount by 7%, you would want to use 1.07 as the multiplier. To decrease it, you would use 0.93
Step-by-step explanation:

Thats what you would use, so now 2/10 is .2 When you divide so you move the decimal so 20%
The percent increase is 20%
Answer:
It is the third one because of formula I² + 2I*II + II²
In your case I = 4x and II = 3
It would be zero because you can’t raise 0 to any positive power.