Solve the problem by writing and solving a suitable system of equations. If 40 pounds of tomatoes and 20 pounds of bananas cost $26 and of tomatoes and of bananas cost $20, what is the price per pound of tomatoes and bananas

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]