Answer:
x >1/5
Step-by-step explanation:
5x-1 >0
Add 1 to each side
5x-1+1 >0+1
5x >1
Divide each side by x
5x/5 >1/5
x >1/5
Answer:
D) 
Step-by-step explanation:
if you multiply exponents, you actually add them
so... 4+2=6
The ratio A/r² would represent

which is the circumference of a circle divided by its diameter.
You can see this because the area of a circle is

r² and if you divided that by the radius squared, you are given pi which is the circumference of a circle divided by its diameter.
<span>8.4 * 10 to the 4th power.
i hope that helped =)</span>