Step-by-step explanation:
Geometric mean

Answer:
Step-by-step explanation:
I'm unsure why my answer was deleted, randomly deleted a thoroughly explained answer.
20% is 20/100, 1/5, or 0.2
The number will decrease by a factor of 5.
Answer:
<h3>3x^2 +2x</h3><h3>9x^2 +6x+1</h3>
Step-by-step explanation:

2.

Okay so you make your own kind of number, add the two number together. then graph the number on the chart verifying where its at . go from the origin and fine out where your number stands. then make sure your equations can prove that what number you picked and were you put them made the answer true
hope this helped!