PLEASE HELP. DO IT GOOD AND CORRECTLY PLEASEE.

A washing machine normally sells for $650.

Part A: During a holiday sale, each washing machine is marked down 20%. How much will it cost to buy the washing machine during the sale? Explain how you found your answer.

Part B: There is a delivery fee of $39 added to the sale price. What percent of the sale price is the delivery fee? Explain how you found your answer.

Part C: The sales tax is 4%. How much tax will be paid on the washing machine during the sale? Do not include the delivery fee. Explain how you found your answer.