Find the value of two numbers if their sum is 22 and their difference is 6

Whats the name of the vertical axis

The area of square garden is 300m squared. how long is the diagonal?

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]