Tang Company accumulates the following data concerning raw materials in making one gallon of finished product. (1) Price-net purchase price $3.00, freight-in $0.50, and receiving and handling $0.20. (2) Quantity -required materials 3.50 pounds, allowance for waste and spoilage 0.80 pounds. Compute the following. (Round answers to 2 decimal places, e.g. 1.25.) (a) Standard direct materials price per gallon. (b) Standard direct materials quantity per gallon. pounds (c) Total standard materials cost per gallon