Find the geometric mean between 3 and 12

Wanted the geometric mean between A = 3 and B = 12.

So the Geometric mean equation simply is √(A × B).

Since A is 3 and B is 12 ->

= √(3 × 12)

then plug in the equation ->

= √36

and the root of 36 = 6.

Therefore your answer is 6.

Ican't do any of the other stuff, but i can get you started. the answer, i believe, is $2.50.

Idk i am in 5th grade lol