1. 2/100 as a percent is 2% and as a decimal it is 0.02
3. 9/10 as a percent is 90% and as a decimal it is 0.9
5. 48% as a decimal is 0.48 and as a fraction is 48/100
7. 0.04 as a percent is 4/100 and as a percent of is 4%
Hope I helped you
The way to get the equation for the radius (r) is to get r by itself. So divide each side by 4pi
500/4pi=r^2
Now take the square root of each side to get the equation of r.
sqrt(500/4pi)=r
0.5x22=11. To get answers like that, all you have to do is divide 11 by anything and then that number times the number you divided 11 by will give you the answer. So like 11 divided by 4 is 2.75. So 4x2.75=11.
