The radius of circle A is 4 times greater than the radius of circle B. Which of the following statements is true?
A. The circumference of circle B is 4 times greater than the circumference of circle A.
B. The circumference of circle B is 16 times greater than the circumference of circle A.
C. The circumference of circle A is 4 times greater than the circumference of circle B.
D. The circumference of circle A is 16 times greater than the circumference of circle B.

Correct C.  Ca = 4 Cb

Step-by-step explanation:

Given: Ra = 4 Rb

Ca : Cb = ?

Using the following formula to calculate the circumference of a circle:

C = 2 R π

Cb = 2 Rb π

Ca = 2 Ra π = 2 ·( 4 · Rb) · π = 4 · (2 Rb π) = 4 · Cb

Ca = 4 · Cb

God is with you!!!

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.