WILL GIVE BRAINLIEST.

Answer:
B is the better buy.
Step-by-step explanation:
A: conical container: volume = π(6/2)²*9/3 = 27π
B: cylindrical container: volume = π(6/2)²*9 = 81π
Cost per unit volume:
A: $1.75/(27π) = $0.0206
B: $3.75/(81π) = $0.0147
So B is cheaper.
B is the better buy.