Please answer both! Thanks sm :)

1. C= 2(pi)(d/2)

2. C= 2(pi)r

Step-by-step explanation:

The first answer is where you would have to find the radius of the circle if you know the diameter. And to find the radius, you would have to divide the diameter by 2 to get the radius. Welp I wish you luck! ;)

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation: