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From the grocery store you need to purchase 1/2 lb of cheese .3lbs sliced ham 2 loaves of bread 4 bags of potato chips and 1 container of salsa you have a coupon for 4.00 off it your purchase totals more than 15.09 pr 10% pff if the total more than 20.00 the food sales tax is 3% what is the total cost