Answer:
Radius:3.14
Circumference: 6.28
Step-by-step explanation:
C=2(pi)(r)
replace r with 1
and you get 6.28
R=(pi)(r)^2
Replace r with 1
multiply and you get 3.14
Answer:

Step-by-step explanation:
can be simplified to:

Make them have common denominators so:

Simplify:

I don't think you can simplify that fraction further so that's the answer.
Answer:
5 x 2 -3 = 7
Step-by-step explanation:
i mean.... thats all