The expression that represents the total bill is 1.26x.
A tax is a compulsory sum levied on the purchase of goods and services by consumers. Taxes increase the prices of goods and services. As a result of the tax, the cost of Noah's bill increases by 5%. Noah's bill Noah's bill is now 1.05x.
After the tip is paid, Noah's bill increases by 20%. His bill becomes 1.20x 1.05x = 1.26x
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