Help me on this please don’t know how to do it

Answer:
Step-by-step explanation:
formula of volume of cylinder is ([tex]\pi[/tex]r2h)
= 22/7*7 square*3
= 22/7*49*3
= 462
we cancelled 7/49 we get the answer as 7 then multiplied by 3 we get the answer as 21 and then multiple 22*21 u will get 462