Allie needs 65 centimeters of fabric for the pillow she is making. the fabric costs $4.20 for a meter and the stuffing for pillow costs 79cents. How much will it cost her to make this pillow?

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]