Applications of exponential functions need help ASAP PlZ

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose

Which diagram shows lines that must be parallel lines cut by transversal?

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]