Write if it’s sss sas asa or hl for these proofs

When turned about its axis of rotation, which shape could have created this three-dimensional object?

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?