If the price of an item is $34 and the sales tax on it is $1.36, what is the sales-tax rate? You can use the calculator tool.

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Aaron has $30. He wants to spend 2/5 of his money on comic books. How much does he want to spend?

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A retailer marks up the price of a coffee mug from $6.25 to $8.77. By what percent did the price increase? Round to two decimal places. a. 28.73% b. 39.68% c. 40.32% d. 45.97%

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One winter day the temperature dropped sharply during the afternoon. Tatiana recorded a change of - 19.5 degrees Celsius in 3.75 hours. What was the average change in temperature per hour? Enter your answer as a decimal in the box.

What is 3^4 in standard form?