Anyone can y’all help me. What’s the mistake in this? And what’s N actually equal to?

Need on this one asap im almost done with this subject

Look at the chart showing the results of a baseball player at bat. which is the probability of getting a hit?

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]