Lời Giải
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What is the volume of a sphere with a bán kính of 9.9 ft, rounded to the nearest tenth of a cubic foot?8 more than the quotient of a number and-5 is less than or equal to 6.find area of a circle whose bán kính is 7cmthe sum of three consecutive integers is-378when a certain number is subtracted from twice another number the result is 25.when 4 times the firs number is added to the second number the result is 50.find the two numbers