Lời Giải
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The chu vi of a circle is 69.08 kilometers. What is the circle's diameter?The bán kính of a circle is 6 cm. Find its area to the nearest whole number.Seven times the hiệu of a number and 7.Khloe is going to invest in an account paying an interest rate of 1.5% compounded annually. How much would Khloe need to invest, to the nearest dollar, for the value of the account to reach 54,000 in 11 years?Adam is 20 years younger than Brian. In two years Brian will be twice as old as Adam.:How old are they now?