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y = y = y = k x The sale price is $ Item Price $70 Discount rate 25% • which is the amount of discount. y = y = y = k x The sale price is $ Item Price $14 Discount rate 30% • which is the amount of discount. y = y = y = k x The sale price is $ Item Price $50 Discount rate 45% • which is the amount of discount. y = y = y = k x The total cost is $ Item Price $60 Discount rate 20% • which is the amount of discount. y = y = y = k x The total cost is $ Item Price $18 Tax rate 6% • Amount of tax. y = y = y = k x The total cost is $ Item Price $8 Tax rate 12% • Amount of tax. y = y = y = k x The total cost is $ Item Price $30 Tax rate 7% • Amount of tax. y = y = y = k x The total cost is $ Item Price $36 Tax rate 9% • Round to the nearest hundredth, if necessary. Amount of tax. |