sam invested a sum of money at 6%. he invested a second sum, $1,000 more than the first sum at 7%. if annual income was $1,110, how much did he invest at 6%? how much at 7%?

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]