Area for a circle is

. We will fill in each area and then solve for the radius.

and

. ∴

and r = 13. For b,

and

.

, ∴ r = 17. For c,

, and

. ∴,

and r = 11. For d,

, and

. ∴,

so r = 25. And there you have it!
Answer:
It must travel through a medium
Step-by-step explanation: Because I said so >:(
Would it be 3.4, 4.3, 5.2, 6.1, 7
Answer:
See explanation!
Step-by-step explanation:
A = Reflection
B= Rotation
C= Translation
D= Dilation
35 = red
35 : 50 = 7 : 10
the ratio is should be 7 out of 10