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0.2 of what number is 15Huilan is 6 years older than Thomas. The sum of their ages is 56. What is Thomas's age?The radius of a circle is 14 ft. Find its 원둘레 in terms of pipi.Find the accumulated value of an investment of 8,000 at 9% compounded continuously for 3 years.Three consecutive integers have a sum of 87.