I need an equation example of a relation

Find the distance between (7,-6) and (-3,-9)

Can someone plz me understand how to do these. plz, show work.in exercises 1-4, rewrite the expression in rational exponent form.[tex]\sqrt[4]{625} \sqrt[3]{512} (\sqrt[5]{4} )³ (\sqrt[4]{15} )^{7}\\ (\sqrt[3]{27} )^{2}[/tex]

What is the interquartile range (iqr) of the data set represented by this box plot?