1.) 1/9, 2/18, 3/27
2.) 6/10, 12/20, 9/15
F(3)= 9 bc 4(3)=12 12-3=9
2.6pi is the circumference
circumference is 2pi*r
so 2.6pi=2pi*r
2.6=2r
r=1.3
The radius should be 1.3 meters
34-12=22
the answer is:
If the outside is 34c and the inside is 12c then the answer is 22c, as you are taking off 12 from 34.