Here are the scores of students on a history test. 57,58,61,61,65,71,73,75,77,78,80,82 ,92 Notice that the scores are ordered from least to greatest. Give the five-number summary and the interquartile range for the data set.

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.