해법
해법
솔루션 단계
Given:
주어진 원 지름
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9 is 12% of what numberThe 지름 of a circle is 4 ft. Find its area in terms of pipi.Find the final amount when 29500 is invested at 9% simple interest for 3 yearsJim is 26 years old. Marco is 20 years older than Jim and 16 years older than Owen. How old is Owen?The product of two consecutive odd integers is 143.