• anonymous
Trinh has a part-time job at the local service station, where he is entitled to a staff discount of 10% on petrol and 15% on food and drink. On a particular day she buys 20L of petrol, which sells for 153.4 cents per liter, and a can of coke and a packet of chips, which cost him $2.50 cents and$3.05 respectively. How much was her bill, after discount, for that day?
Mathematics

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