Time after which two lighthouses blink together
Question: "Sam" and "Martha" are local names for two lighthouses. Sam blinks every 12 seconds, Martha every 8 seconds. They blink together at midnight. How many seconds will pass before they blink together again?
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A recipe that makes 6 servings calls for 1/3 cup of orange juice and 1/2 cup of lemonade. Arlene modifies the recipe so that it can serve 9. How many cups of orange juice does Arlene need?
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What is the molar concentration of a solution of sulfuric acid, H2SO4, if 9.11 mL react completely with 0.254 g of NaOH which was dissolved in 200 mL of water?
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Question: Which of the following statistics is true regarding adolescents? A. 1 million people each year get STDs. B. Half of STD infections are among people
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