Plz me. i need to study for my math test but am really confused on this. can u tell me how to figure it out as well as the answer?

Three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder ( ! : ”0 )

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Astore sells 4 apples for $3 and 3 oranges for $4 if pete buys 12 apples and 12 oranges how much will it cost