Jordan is watching the action movie the movie is 96 minutes long and the previews are 1/4 as long as the movie it jordan watches all the previews in the whole movie how long will he be in the theater

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]