8s in 5,188 what is the answer

Line wx is parallel to line yz. if m

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]

Which diagram best shows how fraction bars can be used to evaluate 1/2 divided by 1/4?