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If I'm 13 years old, how old will I be in 7 years?
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The sum of 4 times a number and 7 is 9You pick a card at random, put it back, and then pick another card at random. What is the probability of picking a 2 and then picking a 2?What is the volumen of a cube with an edge length of 0.8 m?the difference of two numbers is equal to 6. moreover, the square of the sum of these numbers is 441. find these numbersThe product of two consecutive negative odd integers is 483