Determine if the sequence is arithmetle or geometne, and find the common difference or ratio (1,81), (2,72),(3,63),(4,54)
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What is the smallest integer n such that n\sqrt{2} is greater than 20

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?