The diameter of a circle is 9 m. Find its circumference in terms of \piπ.
C equals

c = 28.27 m

Step-by-step explanation:

This is the answer based on my math. I hope this helps you!

Circumference==2πr=28.28m

Step-by-step explanation:C=2πr

C=2×3.142×4.5=28.28m

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true