해법
해법
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The sum of two numbers is 15. Twice the large number plus 4 times the smaller number is 24. Find the large number.5.715 to 정확한 numbersix more than the quotient of a number and 9 equal 2Roberta invested a principal amount of 3114.00 with a rate of 4% that compounds continuously.It has been accruing interest for 22 years.What total value does Roberta now have?The radius of a circle is 3 ft. Find its 원둘레 in terms of pipi.