‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️Please please help! I’ve been waiting for 30 minutes and still no one has helped! Please only answer if you absolutely know you have the correct answer! Please explain how you got your answer! Thank you so much guys!!

PART ;

......Circle A.................
Circumference - 2 pi r
25.12 = 2pi(4)
25.12 = 8i
Divide both sides by 8!!
3.14=pi

...Circle B.....................
Circumference = 2 pi r
9.42 = 2pi(3/2)
9.42 = 3pi
Divide both sides by 3!!!
3.14 = pi

PART B

.............Circle A...............
A=pi r ^2
50.24 = pi(4)^2
50.24=16pi
Divide both sides by 16!!!
3.14=pi

.............Circle B.............
A=pi r^2
7.065=pi(3/2)^2
7.065= 9pi/4
Divide both sides by 9/4!!!
3.14=pi

PART C

They used exactly 3.14 for the value of pi in CIRCLE A and B to get the circumference and the area :D

I hope this makes sense!!! 
When I wrote 'pi', it was supposed to be the symbol for pi.