The volume of a certain graduated cylinder that Benjamin Banneker found in a lab is 490 π cubic cm

The radius of the base is 7 cm. What is the height?

Answer is not 3.18, I've already tried that.

b

step-by-step explanation:

ez

idk

step-by-step explanation:

i don't know

(0.2)+(-8)=0.3+-3+0.3m is the equation i guess? ?

step-by-step explanation:

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