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5. Decode the given expression for each problem, starting with the right- most factor and moving back factor by factor. Use the sample question as

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5. Decode the given expression for each problem, starting with the right- most factor and moving back factor by factor. Use the sample question as guide. Sample Question Price is $87.49. Item is on sale at 10% off. Tax is added at 13%. Calculate the amount of tax. a = 0.13x (1 0.1) x 87.49 Answer to Sample Question 87.49 represents the price (1 0.1) x 87.49 represents the sale price 0.13 x (1 0.1) x 87.49 represents the amount of tax a. (2 marks) Price is $25.30. Item is on sale at 15% off. Calculate the sale price. ps = (1 0.15) x 25.30 Answer: b. (3 marks) Price is $47.90. Item is on sale at 10% off. Tax is added at 13%. Calculate the grand total. t = (1 + 0.13) x (1 0.1) x 47.90

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