Archie went to an arcade to play video games he paid $2 for every 11 tokens he bought he spent a total of $16 on tokens which equation can be used to determine t the number of tokens fred bought

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]