Assume that y varies inversely with x. if y=12 when x=5, find y when x=3

Naomi’s parents want to have 50,000, saved for her college education, if they invest 20000 today and earn 7% interest compound annually, about how long will it take them to save 50 thousand

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What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6