You purchase an item to sell in your store. the item costs you $6.45. you mark the item up 20%, but later run the item on sale at 5% off the marked price. if your customer must pay 6% sales tax, what will be the total amount paid by the customer for the item?

Plz help plz give me the answer

Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)

41/17 as a decimal rounded to the nearest hundredth