Can playing music cleanse crystals energetically? Or do they just like music

Which of the following is the inverse of y = 3∧x y = 1/3∧x y = ㏒3x y = (1/3) ∧x y = ㏒ 1/3∧x

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i