How much tax is charged on a umbrella if its tax rate is ?

A can of rare beans costs after tax and before. What is the tax rate on this item?

In the past year, the price for a bottle of water decreased by while the sales tax on the bottle of water is of the original rate. What percentage does the tax increase/decrease by compared to last year?

A cake order cost before tax. If the tax rate is , what is the price of the cake after tax is applied?

A supermarket sells apples for . If you buy more than of apples at once, the supermarket will discount the price by . How much will of apples cost? Round to the nearest cent.

If a sweater has a total cost of after tax, what is the cost of the sweater before tax, if the sales tax is ?