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Which energy transformation happens when the blades are spinning as shown?
O Electrical to mechanical
O Chemical to electrical
O Mechanical to electrical
O Chemical to mechanical

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account