Find the radius and circumference of a cd with a diameter of 4.75 inches

radius = 2.375

I don't know the circumference

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

4.

step-by-step explanation:

it have the same area.brainliest