Lời Giải
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12 less than a numberThe bán kính of a circle is 12 cm. Find its area in terms of pipi.Half of a number x subtracted from 4 is greater than or equal to −2.A person invests 6000 dollars in a bank. The bank pays 6.5% interest compounded semi-annually. To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 15100 dollars?The đường kính of a circle is 10 in. Find its area in terms of pipi.