A container holds 0.7 litres of oil and vinegar. 3/4 of the mixture is vinegar. How many litres of oil are in the container? Express your answer as both a fraction and a decimal.

Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?